Neknominate inquiry after death of Cardiff man, 29
Links with the Neknominate drinking game are being investigated by police who are looking into the sudden and unexplained death of a Cardiff man.
South Wales Police say they are waiting for post-mortem test results into the 29-year-old's death on Sunday morning.
The man has been named locally as Stephen Brookes, from Rumney, Cardiff.
Neknominate involves people filming themselves "necking" a drink, posting a video on social media and then nominating someone else to do the same.
Police confirmed they had received information about the drinking game as part of the investigation.
The coroner has been informed.
In a statement, South Wales Police said it was "investigating the sudden and unexplained death of a 29-year-old man from Rumney, Cardiff, during the early hours of February 9".
It said: "Officers investigating his death on behalf of HM Coroner have received information regarding the so-called neck and nominate game.
"Inquiries are continuing and a post-mortem examination is due to take place."
A teenager died on 1 February in the Republic of Ireland after allegedly taking part in a game of Neknominate.
Jonny Byrne, 19, from County Carlow, died after jumping into the River Barrow in Carlow.
His uncle Len Brimble, from Cwmbran in south Wales, said they had received a call on the Saturday telling them Mr Byrne had received a Neknomination and had drunk a mixture of whisky, Malibu and vodka before jumping in the river.
"He's a lad who who never went near water. He was absolutely terrified of water," Mr Brimble told BBC Radio Wales.
"Unfortunately he drowned. His brother tried to save him and he nearly drowned and his brother's girlfriend nearly drowned.
"Johnny wasn't a big drinker. He'd manage a bottle of Heineken and that was about his limit.
"In my eyes, I think he'd been coerced into this thing."
Mr Brimble added: "I can't emphasise enough how stupid a game it is. We've all been young, we've all done silly things but this - the absolute tragedy of this is he had all his life in front of him."
The family went to Mr Byrne's funeral last Wednesday and Mr Brimble said the whole community had been devastated by the events.
"I want to warn the young people: don't do it.
"You'll destroy your family as it's destroyed our family."
Isaac Richardson, 20, died after he was apparently dared to drink something "messed up" and, according to a friend, responded by downing a mixture of wine, whisky, vodka and lager .
Meanwhile, the Young Farmers Club (YFC) in Wales has warned its 6,000 members about the dangers and possible consequences of taking part in the game.