Organisers have turned off some of the dedicated Olympic Games lanes as officials opt to travel by public transport, Boris Johnson has said.

The London Mayor insisted he was pleased with the way the capital's transport network was operating during the Olympics so far as ministers and the Prime Minister met at the Cabinet Office.

David Cameron, who chaired the Government's Cobra contingency committee, told waiting reporters that any organisational challenges would be surmounted.

He said: "I've just actually come on the Tube myself to see what the traffic situation's like, not too bad, the Bakerloo Line's going alright.

"But lots of challenges, we've got to overcome them one by one, I think everything at the moment is looking good."

Mr Johnson revealed president of the International Olympic Committee Jacques Rogge had travelled on the Docklands Light Railway instead of by car in one of the lanes.

Mr Johnson said: "Obviously the transport, we're pleased with the way it's working so far, everybody at London Bridge was working well, the Tube is working well, the ORN.

"Actually, we've been able to turn off a lot of the Games lanes because so many people are going by public transport.

"It turns out a lot of the Olympic bureaucrat types who could go in the Games lanes, the T3 people as they're called, are using public transport.

"Jacques Rogge himself today took the DLR, I'm proud to say, and was conveyed in stately style and comfort he'd expect on the DLR, and a lot of them are doing that and that is good news."