By Alex Stevenson and Ian Dunt
Protestors have attempted to break through police lines in Parliament Square, as riot police deploy to defend the Commons.
Police are defending parliament in two lines - one holding protestors back and a second in reserve on the pavement next to parliament's perimeter.
The area nearest Westminster Abbey saw riot police come under sustained pressure from demonstrators, who forced the entire line back about ten yards. Officers responded by sending in reinforcements, tripling police ranks in a bid to stabilise the situation.
Protestors have torn down sections of the wire fences which had closed Parliament Square off to pedestrians, passing sections of the fence over their heads towards the police - who were forced to quickly clear them.
more:
http://www.politics.co.uk/news/education/police-call-in-reinforcements-as-protestors-surround-parliament-$21386169.htm