Ian Austin, chairman of the cross-party campaign against extremism Mainstream UK, said: “Conflict in Israel leads to an increase in antisemitism in the UK, both on-line and in our communities.
“British politicians on all sides should be calling for a de-escalation of violence to avoid yet more bloodshed in Israel and Gaza.
“Instead too many Labour MPs are using social media to stoke tensions when they should be seeking to calm them.”