British Labour Party leader Jeremy Corbyn is facing growing criticism over his handling of reported anti-Semitism among some of his supporters.
The simmering row escalated today with newspaper reports about numerous anti-Semitic Facebook posts from groups that support Labour.
The Sunday Times reported that some senior Labour staff workers were members of Facebook groups that made anti-Semitic and violent comments.
Labour has denied the groups are connected to the party in any way.
Corbyn's leadership also has been criticized by longtime Labour activist David Garrard, a major donor. Garrard told The Observer newspaper he has left the party because of its failure to confront anti-Semitism.
"I have watched with dismay and foreboding the manner in which the leadership has, in my view, over the last two years, conducted itself," he said. "I consider that it has supported and endorsed the most blatant acts of anti-Semitism."
He said the party has failed to expel members espousing "the grossest derogatory" comments about alleged Jewish conspiracies and characteristics, saying the attacks are like those that led "to such unbearable consequences for innocent millions in the past."