Jeremy Corbyn has clashed with the Israeli prime minister on Twitter as a row escalated over the Labour leader's presence at an event honouring Palestinian terrorists.
Benjamin Netanyahu said Mr Corbyn deserved "unequivocal condemnation", accusing him of laying a wreath on the grave of one of those behind the Munich Massacre in 1972, in which 11 Israeli athletes were killed.
Corbyn was present at a memorial service in Tunisia in 2014 in which members of Black September, an extremist Palestinian group, were honoured.
The right-wing Likud leader also criticised the UK Labour leader for drawing parallels between Israeli actions against Palestinians and Nazi atrocities.
Mr Corbyn hit back in the Twitter spat, saying the accusations were "false" and blasting Mr Netanyahu's policies in Gaza.
"The laying of a wreath by Jeremy Corbyn on the graves of the terrorist who perpetrated the Munich massacre and his comparison of Israel to the Nazis deserves unequivocal condemnation from everyone – left, right and everything in between," wrote Netanyahu.
"Israeli PM @Netanyahu's claims about my actions and words are false," Corbyn responded.
"What deserves unequivocal condemnation is the killing of over 160 Palestinian protesters in Gaza by Israeli forces since March, including dozens of children."
Yesterday Jeremy Corbyn admitted that he was present at the memorial but said he was "not involved".
Corbyn is facing increasing pressure to deal with reported anti-Semitism in the Labour party and his latest actions have drawn widespread criticism, including from Foreign Secretary Jeremy Hunt.
However some also expressed the opinion that they were standing with Corbyn, and called for condemnation of the Israeli government's actions.