Last updated at 07:48

Today in pictures: 18th July 2013

Today in pictures: 18th July 2013
A group of children sing Happy Birthday to former South African president Nelson Mandela outside the Mediclinic Heart Hospital where he's being treated for a lung infection. The children's signs say 'Madiba', which is the name of the clan of which Mr Mandela is a member.
Children in party hats with colourful balloons celebrating Nelson Mandela's birthday.
A fun club cover on the bag of golfer Bubba Watson from the United States is seen during the first round of the 142nd Open Championship at Muirfield in Scotland.
Bubba Watson walking with golf clubs.
A reddish moon is seen through the smoke in the western skies of California, USA, because of the mountain fire there. The blaze started on Monday afternoon near Los Angeles.
A picture showing a red moon in the night sky.
Nature legend, Sir David Attenborough, poses with a Great Mormon Butterfly on his nose in 2012. He said the wet summer of 2012 was a "disaster" for butterflies and has called on the public to help assess if species were recovering from their worst year on record. UK butterfly numbers have reached record lows in gardens and the countryside, the charity Butterfly Conservation said today.
Sir David Attenborough with a Great Mormon Butterfly on his nose.
Divers practise during a training session ahead of the FINA World Championships in Barcelona, Spain.
Two divers upside down.
Fans take a 'selfie' in front of a comics mural at the Comic-Con International 2013 event in San Diego, California.
Fans posing in front of a comic mural.
Australia's fielders appeal on the first day of the second Ashes cricket test match at Lord's cricket ground in London.
Cricketers playing on the first day of the second Ashes cricket test match
The UK enjoyed the hottest day of the year so far on Wednesday - with 32.2C recorded in south-west London. The hot weather doesn't look like it's going anywhere soon. You guys are coming up with lots of different ways to cool down, like this girl who is playing in the fountain "Appearing Rooms", by Danish artist Jeppe Hein, in London. Remember to take care when playing near water and always let a parent or guardian know where you are.
A girl enjoying the hot weather, surrounded by water fountains