The University of Central Lancashire has cancelled an event which was due to take place as part of "Israel Apartheid Week" activity on its campus.
The session was organised by the university's Friends of Palestine group and was billed as a panel discussion looking at the boycott of Israel.
It was due to feature speakers including anti-Israel activist Ben White and pro-Palestinian academics.
But a spokesperson for the university said “Debunking Misconceptions on Palestine" contravened the definition of antisemitism adopted by the government and was “unlawful”.