"Hundreds of thousands" of people descended on London for a pro-Palestinian march on Saturday, as the Metropolitan Police warns months of protest have caused "fear and uncertainty" in Jewish communities. <br /> <br />The event, organised by the Palestine Solidarity Campaign (PSC), began at Parliament Square from 12pm and is expected to draw larger crowds as the day goes on. <br /> Report by Kennedyl. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn