London Olympics cauldron put out and relit in stadium
The Olympic cauldron has been extinguished and relit after being moved into the position occupied by the opening ceremony bell in the stadium.
The flame was taken from the cauldron at 21:00 BST on Sunday and placed in a miner's lantern while the structure was relocated from the field of play.
It was relit at 07:50 BST on Monday, after the move to the south end of the stadium was complete.
The cauldron is made up of 204 steel pipes and copper petals.
In Beijing and at other Games, the cauldron has been positioned on the stadium roof to maximise its visibility.
Live footage of the London flame will be projected on the stadium's big rooftop screens during the first week of the Games.
Thomas Heatherwick, who designed the cauldron, said: "There is the precedent of the 1948 Games of the cauldron set within the stadium, to one side with the spectators and with the technology we now have that didn't exist in 1948, it can be shared with everyone in the Olympic Park with screens.
"We felt that sharing it with the screens reinforced the intimacy within it.
"If it had been a huge beacon lifted up in the air it would have had to be bigger and would have somehow not met the brief that we discussed with Danny Boyle of making something that was rooted in where the people are."
The cauldron was re-lit by Austin Playfoot, who carried the London Olympic torch in 1948 and 2012.
He said: "When I ran with the Olympic flame in Guildford I never thought I would get this close to the cauldron, it brought me to tears when it lit up.
"It will be an incredible inspiration to the competing athletes here at the heart of the Olympic Park in the stadium."
The athletics events begin in the stadium on Friday.
At the end of the Games, it will be dismantled and one petal given to each of the competing nations and territories.