Pro-Palestine protests have erupted outside the gates of Downing Street just hours after a terror attack at a Manchester synagogue.

Thousands of people waving Palestinian flags gathered in central London on the same day two Jewish worshippers were killed and three others injured in the car and knife attack.

They were responding to an earlier call to protest against the arrest of Greta Thunberg, with activists urged to “block the tracks” at major railway stations across the UK, including Manchester Piccadilly.

An attacker was shot dead by police on Thursday morning moments after he targeted worshippers at Heaton Park Hebrew Congregation Synagogue in Manchester shortly before 9.30am.

The attack took place on Yom Kippur, the holiest day in the Jewish calendar.