Gaza Crisis: Large demonstration In London. Sea of flags and placards being waved

Gaza Crisis: Large demonstration In London. Woman chanting

Gaza: Large demonstration In London. Jeremy Corbyn surrounded

Gaza Crisis: Large demonstration In London. Man with loudhailer chants for crowd

Gaza Crisis: Large demonstration In London. Cameras filming energetic marchers chanting

Gaza Crisis: Large demonstration In London. View through sea of placards

Gaza Crisis: Large demonstration In London. Homemade placard raised

Gaza Crisis: Large demonstration In London. Female protestors arms locked at front of rally

Gaza: Large demonstration In London. Press throng around Jeremy Corbyn

Gaza Crisis: Large demonstration In London. Man poses with homemade banner

Gaza Crisis: Large demonstration In London. Man with loud hailer talking

Gaza Crisis: Large demonstration In London. Placard "End the Siege"

Gaza Crisis: Large demonstration In London. Male protestor leading chant on megaphone

Gaza: Large demonstration In London. Reporter doing live piece to camera

Gaza Crisis: Large demonstration In London. Two young British Muslim women

Gaza Crisis: Large demonstration In London. High view of thousands of protesters

Gaza: Large demonstration In London. Two protestors with beards talking

Gaza Crisis: Large demonstration In London. Young protestor wearing Keffiyeh.

Gaza Crisis: Large demonstration In London. Female protestor chanting in Keffiyeh

Gaza Crisis: Large demonstration In London. Men praying at side of march towards Mecca.

Gaza Crisis: Large demonstration In London. Police Helicopter overhead and pan down

Gaza Crisis: Large demonstration In London. Young British Muslim woman in headscarf and Keffiyeh

Gaza Crisis: Large demonstration In London. Man holding homemade placard raised

Gaza Crisis: Large demonstration In London. CU woman headscarf and hand holding placard.

Gaza Crisis: Large demonstration In London. Raised view over marchers