From The Press Association:
Protesters have forced police to extinguish the Olympic torch amid heavy demonstrations as it set off across Paris.
Officers in jogging gear who had been escorting the flame put it out and took it on a bus, apparently to get it away from the protesters.
The flame, which started out at the Eiffel Tower amid tight security, was being carried down a road next to the Seine near demonstrators carrying Tibetan flags when the relay was stopped.
Sky News has footage of the security guarding the torch, including the police on rollerblades: