The Archbishop of Canterbury has tweeted his condemnation of anti-semitism following an outbreak of incidents spurred by the escalation of the conflict between Palestine and Israel.
Justin Welby said: "There can be no excuse for the appalling anti-semitism we have seen in the UK today.
"Such hatred here will not help bring the long overdue peace with justice in Israel and Palestine.
"As we continue to pray for the Holy Land we must reject violence, the threat of violence and anti-semitism."
His remarks follow an incident in London on Sunday in which a convoy of six cars drove down Finchley Road with the occupants waving Palestinian flags out the windows and shouting anti-semitic abuse.
Four people were subsequently arrested.
Israel carried out further bombing raids on the Gaza Strip yesterday, allegedly killing another 42 people.
That brings the total number of Palestians killed since the latest round of conflict started seven days ago to an estimated 192 people.
Palestinian rocket attacks on Israel have killed 10.
The United Nations Security Council met yesterday to discuss the violence, but failed to agree on a course of action.