By Thomas Mackintosh & Victoria Bourne in central London BBC News Thousands of pro-Palestinian protesters have begun gathering in London for a protest urging an end to Israel's attacks in Gaza. Last weekend, 100,000 people took to the streets of the capital demanding an end to the bombing in Gaza, and police expect similar numbers again. Rallies are expected in many UK cities, including Manchester and Glasgow. The demos come as Israel expands its strikes, three weeks after Hamas launched an attack on its territory.