British police are questioning six suspects over a deadly car-ramming and knife attack on a Manchester synagogue that killed two people on Yom Kippur, as Prime Minister Keir Starmer urged people not to take part in pro-Palestinian protests.

Two people were killed and three others seriously wounded in Thursday's attack in northwestern Manchester on Yom Kippur, the holiest day of the Jewish calendar.

Police shot dead assailant Jihad Al-Shamie, a 35-year-old UK citizen of Syrian descent, within minutes of the alarm being raised.

Three men and three women are in custody.

The attack has heightened fear among Britain's Jewish community.