In London, hundreds of protesters blocked roads outside the British Parliament and staged a sit-in at Westminster Bridge, to demand an immediate ceasefire in Gaza.

Saturday's London protests also called for the UK to stop selling arms to Israel and demanded an end to the Israeli occupation of Palestine.   

London Police made several arrests at the park, as protesters marched through Westminster before being stopped by officers next to Big Ben, culminating in a sit-in at Westminister Bridge.

A video circulating on social media showed Metropolitan police cracking down on demonstrators.

Despite facing increasing domestic pressures to take a harder stance against the Israeli war on Gaza, Britain has not supported the call for an immediate ceasefire in Gaza to date.

The march in London comes two days before the British parliament returns to work after its Christmas break.

The latest protest aimed to push the government to change its stance on the war

On Wednesday, UK Foreign Secretary David Cameron said his country wants to see "progress towards a sustainable ceasefire," noting he had discussed the issues with new Israeli Foreign Minister Israel Katz.