The London Fire Brigade have released a video of tests on a piece from the back of a fridge to show how quickly fire spreads though it:
More top news
As the sisters prepare to meet again at Wimbledon - we look at the sisters' fact files and key career stats.
Australian sportswear firm Lorna Jane has come under scrutiny for its job advert for a model/receptionist.
Greeks have voted to reject the terms of an international bailout, putting it on the brink of a eurozone exit.