Last updated at 09:38

Pictures: 10 celebrities get ready to Tumble

CBBC star Bobby Lockwood, pop star Sarah Harding and boxer Carl Froch are among 10 celebrities taking part in new BBC gymnastics competition Tumble.
Girls Aloud star Sarah Harding on all the training for the show: "At least it beats going to the gym!"
Sarah Harding
The third pop star in the show is H from Steps. All the competitors will have to win votes from the public with their performances.
H from Steps
EastEnders actor John Partridge and all the other celebs have been paired with a professional gymnast. They've been through weeks of training to get ready.
John Partridge
There's another girl group member in the mix - Sugababe Amelle Berrabah. She's said she wants to beat Sarah!
Amelle Berrabah
TV presenter Andrea McLean said: "I've never tried gymnastics before but I love fitness so hopefully I can hold my own with the others and stay the distance."
Andrea McLean
CBBC Wolfblood star Bobby Lockwood is one of 10 celebrities hoping to vault and flip their way to victory in new BBC One Saturday night gymnastics show Tumble.
Bobby Lockwood
All the contestants, including boxer Carl Froch, will be judged by an expert panel that includes British star gymnast Louis Smith.
Carl Froch
Actress Emma Samms trained as a ballet dancer growing up, but suffered an injury when she was 15.
Emma Samms
Reality show star Lucy Mecklenburgh has her own fitness website.
Lucy Mecklenburgh
Completing the line-up is former Blue Peter presenter Peter Duncan. The action starts on Saturday 9 August on BBC One!
Peter Duncan