MANCHESTER, England — British Prime Minister Keir Starmer said he was shocked by Thursday’s terrorist attack on a Manchester synagogue during Yom Kippur, the holiest day in the Hebrew calendar.

Deputy Prime Minister David Lammy was met with a torrent of boos and heartfelt heckles as he rose to speak at a memorial for the victim’s of Friday’s terror attack at a Manchester

Lammy was shouted down as grief over the killings at the Manchester vigil gave way to open fury at politicians who were accused of enabling “Jew hatred.”

The father of the Manchester synagogue attacker praised Hamas’ October 7 massacre as divine and called the perpetrators “Allah’s men on earth.”

Police will investigate whether the knife-wielding terrorist behind the UK synagogue attack previously sent death threats to a British politician over his position on Israel.

Britain's government and the police on Friday urged organisers of a planned pro-Palestinian protest in London this weekend to cancel or postpone the event, following the deadly attack on a synagogue in northern England.

Two people were killed and three others were seriously wounded Thursday in a synagogue attack in northern England on the holiest day of the Jewish year, police said.

Police have declared it a terrorist incident. The attack occurred Thursday morning outside the Heaton Park Hebrew Congregation Synagogue, which is in a northern suburb of Manchester, officials said.