" Around 50 cyclists, who were thought to be taking part in the monthly Critical Mass protest cycle ride, clashed with officers in Stratford, East London.
Their numbers were understood to have been swelled by some protestors from the Occupy London anti-capitalist group.
The incident occurred on the outskirts to the Olympic Park on one of the main throughfares to the venue.
The cyclists, who take part in regular mass rides through London, usually held on the last Friday of every month, had been served with an order preventing them from taking to the streets around the Olympic Site."
