Cyclists arrested outside stadium
A number of cyclists were arrested during scuffles with police close to the Olympic Stadium as the opening ceremony got under way inside.
The incident happened on the outskirts of the Olympic Park on one of the main thoroughfares to the venue.
A spokesman for Scotland Yard said police intervened when participants in a monthly cycling event breached regulations restricting their route.
Police vans headed off scores of people from a pro-cycling group as they rode in formation close to the park.
Officers blocked off their route and some were forcibly removed from their bikes as others tried to break through a cordon.
The spokesman for Scotland Yard said: "A number of people in breach of regulations imposed on a monthly cycling event have been arrested."
He said police would confirm the exact number detained later.
The arrested cyclists have been detained under Section 12 of the Public Order Act.