Hundreds of pro-Palestinian protesters blocked access to a bridge near the British parliament on Saturday, calling for a ceasefire in Gaza in an act of civil disobedience.
London, like other Western cities, has seen regular and sometimes large demonstrations calling for an end to Israeli bombing of the besieged strip.
Police clashed with protesters, who occupied surrounding roads after being prevented from crossing Westminster Bridge, where they had planned to display banners.
Police said they had imposed a legal order limiting the location of protests and that around 3:00 p.m. (3:00 p.m. GMT) people had begun to disperse. Those who refused to comply with an order to leave could be arrested, police said.
Saturday’s action, the first major demonstration of the new year, was smaller than previous mass marches, but comes two days before the UK Parliament returns to work after its Christmas break.
The protest was designed to pressure politicians to take a tougher stance toward Israel in its war on Gaza, which has killed more than 22,700 Palestinians in three months.
