David Cameron sent his congratulations to Jessica Ennis after she broke the world record in the 100m hurdles in the first heptathlon event at London 2012.

"First of all, it was a full stadium and I’m told that sometimes at these sorts of events, that first morning of athletics can be only 10 per cent full, but this was like 100 per cent full," the Prime Minister said.

"The crowd gave Jessica Ennis an amazing reception and it was deserved, she ran a fantastic race."