We'll have live radio coverage of West Indies v South Africa from 23:45 GMT. You can follow that here.
SRI LANKA WIN BY 25 RUNS
And it's all over. Bangladesh are all out for 72. They hit just three boundaries in their run chase of 98. It was a low-scoring match with drama at the start of both innings.
Sri Lanka's innings started terribly as they lost opener Yashoda Mendis with the first delivery.
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Sri Lanka recovered to set a score of 98 to win. The run chase did not start well for Bangladesh as they lost two wickets in the opening over, including the first ball.
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Bangladesh did steady the ship slightly but completely collapsed and were all out for 72.
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WICKET
Khatun c De Silva b Siriwardena 6 (Bangl 60-9)
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Khatun lbw b Atapattu 2 (Bangl 51-8)
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Dropped catch
It's unlikely to make a lot of difference but this is a bit of a shocker at short fine leg. It's Inoshi Priyadharshani again. It looks as if it is in the hands but pops out as she goes down. Unlucky.
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Joty run out (Manodara) 20 (Bangl 47-7)
And that could be that I'm afraid. Bangladesh have made a bit of a meal of this run chase. There's no run there but Sri Lankan wicketkeeper Dilani Manodara does excellently to hit the stumps off balance.
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Jahanara Alam lbw Atapattu 1 (Bangl 42-6)
Jahanara Alam goes upstairs to review this lbw decision but it looks pretty straight. And it is - she has to go and a Sri Lankan win is on the horizon...
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Sultana b Priyadharshani 5 (Bangl 36-5)
Inoshi Priyadharshani has atoned for her dropped catch earlier as she yorks Shamima Sultana and knocks back her off-stump. Nigar Sultana Joty is still out there though and you'd think Bangladesh should still have a chance with her at the crease.
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66 from 48 balls
Bangladesh 32-4
Bangladesh require 66 runs from 48 to secure their first win of the tournament. Can they do it?
Dropped catch
Inoshi Priyadharshani has dropped a bit of a dolly. She sets herself at long-on as Nigar Sultana Joty hits one high. I'm imagining her teammates won't be best pleased.
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WICKET
Rumana c Lokusuriyage b Siriwardena 1 (Bangl 23-4)
Another change of bowling, another wicket. This time it's Sashikala Siriwardena. Rumana Ahmed comes in to bat and doesn't last long at all. She slashes at what would have been given as a wide and is caught at short extra cover.
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Rahman c Atapattu b Ranasinghe 11 (Bang 20-3)
Oshadhi Ranasinghe comes on to bowl and is among the wickets immediately. Admittedly it's not a great shot as Ayasha Rahman slices to extra cover but the change of bowling has worked.
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Update
Bangladesh 18-2
Bangladesh have steadied themselves somewhat after that dreadful first over. Ayasha Rahman and Nigar Sultana Joty needed to stay in for just a couple of overs to halt the early Sri Lankan charge, and they have.
Dropped catch
Ouch. The hero of the first over Udeshika Prabodani has had to go off the field with blood seeping from her hand as she attempts to catch and bowl Ayasha Rahman who slashes one straight back at her. It doesn't look promising as she receives treatment...
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WICKET
Pinky lbw b Prabodani 0 (Bangl 0-2)
This one also looks outside the line but is given again. This time it has been reviewed by Pinky but to no avail. Umpire's call....
A double wicket maiden to open up the innings from Udeshika Prabodani - not bad.
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Islam lbw b Prabodani 0 (Bangl 0-1)
Wow - it's happened again! Sanjida Islam has been given out lbw first ball. That looked well outside the line but there is no review. Drama!
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Did you see this?
Stumps hit. Bails light up. Out?
South Africa's Marizanne Kapp has an extraordinary reprieve when a delivery from Sri Lanka's Udeshika Prabodhani hits her stumps but does not remove the bails.
You can catch up with the highlights and best bits from the Women's World Twenty20 here.
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Penalties for batters running down wicket a 'disgrace'
Penalties for batters running down the pitch at the Women's World Twenty20 are "ridiculous" and an "absolute disgrace", says Test Match Special commentator Charles Dagnall.
Ireland and Pakistan batters have been penalised during the tournament in the West Indies.
Ex-bowler Dagnall said: "Not once have I seen penalty runs dished out for a batsman running up the pitch.
"There has to be a bit of common sense applied here."
Under the Laws of Cricket, batters cannot cause "deliberate or avoidable damage" to the pitch, and must leave the danger area - a protected section of the pitch - "immediately".
TwitterCopyright: Twitter
Former England captain Charlotte Edwards said the penalties "seem harsh"Image caption: Former England captain Charlotte Edwards said the penalties "seem harsh"
Elsewhere in the world of cricket
Sri Lanka v England - Second Test, first day
Jos Buttler and Sam Curran led England out of trouble and into a promising position on day one of the second Test against Sri Lanka in Pallekele.
The tourists fell to 89-4 on a pitch showing prodigious turn before Buttler struck a superb 63 off 67 balls.
On 171-7 they still faced being bowled out cheaply, only for Curran to hit six sixes in a stunning onslaught, his 64 helping England reach 285 all out.
Jack Leach bowled Kaushal Silva for six as Sri Lanka reached 26-1 at the close.
After a slow start Sri Lanka finish on 97-7. They picked up thanks to what could be a crucial 31 from Sashikala Siriwardena. Will Bangladesh be able to catch that total?
Live Reporting
Ben Hobson
All times stated are UK
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TwitterCopyright: Twitter Former England captain Charlotte Edwards said the penalties "seem harsh"Image caption: Former England captain Charlotte Edwards said the penalties "seem harsh" 
Getty ImagesCopyright: Getty Images
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Thanks for joining us tonight.
We'll have live radio coverage of West Indies v South Africa from 23:45 GMT. You can follow that here.
SRI LANKA WIN BY 25 RUNS
And it's all over. Bangladesh are all out for 72. They hit just three boundaries in their run chase of 98. It was a low-scoring match with drama at the start of both innings.
Sri Lanka's innings started terribly as they lost opener Yashoda Mendis with the first delivery.
Video content
Sri Lanka recovered to set a score of 98 to win. The run chase did not start well for Bangladesh as they lost two wickets in the opening over, including the first ball.
Video content
Video content
Bangladesh did steady the ship slightly but completely collapsed and were all out for 72.
Video content
WICKET
Khatun c De Silva b Siriwardena 6 (Bangl 60-9)
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WICKET
Khatun lbw b Atapattu 2 (Bangl 51-8)
Video content
Dropped catch
It's unlikely to make a lot of difference but this is a bit of a shocker at short fine leg. It's Inoshi Priyadharshani again. It looks as if it is in the hands but pops out as she goes down. Unlucky.
Video content
WICKET
Joty run out (Manodara) 20 (Bangl 47-7)
And that could be that I'm afraid. Bangladesh have made a bit of a meal of this run chase. There's no run there but Sri Lankan wicketkeeper Dilani Manodara does excellently to hit the stumps off balance.
Video content
WICKET
Jahanara Alam lbw Atapattu 1 (Bangl 42-6)
Jahanara Alam goes upstairs to review this lbw decision but it looks pretty straight. And it is - she has to go and a Sri Lankan win is on the horizon...
Video content
WICKET
Sultana b Priyadharshani 5 (Bangl 36-5)
Inoshi Priyadharshani has atoned for her dropped catch earlier as she yorks Shamima Sultana and knocks back her off-stump. Nigar Sultana Joty is still out there though and you'd think Bangladesh should still have a chance with her at the crease.
Video content
66 from 48 balls
Bangladesh 32-4
Bangladesh require 66 runs from 48 to secure their first win of the tournament. Can they do it?
Dropped catch
Inoshi Priyadharshani has dropped a bit of a dolly. She sets herself at long-on as Nigar Sultana Joty hits one high. I'm imagining her teammates won't be best pleased.
Video content
WICKET
Rumana c Lokusuriyage b Siriwardena 1 (Bangl 23-4)
Another change of bowling, another wicket. This time it's Sashikala Siriwardena. Rumana Ahmed comes in to bat and doesn't last long at all. She slashes at what would have been given as a wide and is caught at short extra cover.
Video content
WICKET
Rahman c Atapattu b Ranasinghe 11 (Bang 20-3)
Oshadhi Ranasinghe comes on to bowl and is among the wickets immediately. Admittedly it's not a great shot as Ayasha Rahman slices to extra cover but the change of bowling has worked.
Video content
Update
Bangladesh 18-2
Bangladesh have steadied themselves somewhat after that dreadful first over. Ayasha Rahman and Nigar Sultana Joty needed to stay in for just a couple of overs to halt the early Sri Lankan charge, and they have.
Dropped catch
Ouch. The hero of the first over Udeshika Prabodani has had to go off the field with blood seeping from her hand as she attempts to catch and bowl Ayasha Rahman who slashes one straight back at her. It doesn't look promising as she receives treatment...
Video content
WICKET
Pinky lbw b Prabodani 0 (Bangl 0-2)
This one also looks outside the line but is given again. This time it has been reviewed by Pinky but to no avail. Umpire's call....
A double wicket maiden to open up the innings from Udeshika Prabodani - not bad.
Video content
WICKET
Islam lbw b Prabodani 0 (Bangl 0-1)
Wow - it's happened again! Sanjida Islam has been given out lbw first ball. That looked well outside the line but there is no review. Drama!
Video content
Did you see this?
Stumps hit. Bails light up. Out?
South Africa's Marizanne Kapp has an extraordinary reprieve when a delivery from Sri Lanka's Udeshika Prabodhani hits her stumps but does not remove the bails.
You can catch up with the highlights and best bits from the Women's World Twenty20 here.
Video content
Penalties for batters running down wicket a 'disgrace'
Penalties for batters running down the pitch at the Women's World Twenty20 are "ridiculous" and an "absolute disgrace", says Test Match Special commentator Charles Dagnall.
Ireland and Pakistan batters have been penalised during the tournament in the West Indies.
Ex-bowler Dagnall said: "Not once have I seen penalty runs dished out for a batsman running up the pitch.
"There has to be a bit of common sense applied here."
Under the Laws of Cricket, batters cannot cause "deliberate or avoidable damage" to the pitch, and must leave the danger area - a protected section of the pitch - "immediately".
Elsewhere in the world of cricket
Sri Lanka v England - Second Test, first day
Jos Buttler and Sam Curran led England out of trouble and into a promising position on day one of the second Test against Sri Lanka in Pallekele.
The tourists fell to 89-4 on a pitch showing prodigious turn before Buttler struck a superb 63 off 67 balls.
On 171-7 they still faced being bowled out cheaply, only for Curran to hit six sixes in a stunning onslaught, his 64 helping England reach 285 all out.
Jack Leach bowled Kaushal Silva for six as Sri Lanka reached 26-1 at the close.
The full scorecard can be found here.
Bangladesh set 98 to win
After a slow start Sri Lanka finish on 97-7. They picked up thanks to what could be a crucial 31 from Sashikala Siriwardena. Will Bangladesh be able to catch that total?