Remarks by George Galloway that Bradford has been "declared an Israel-free zone" are being investigated by West Yorkshire Police.
The comments, made at a meeting of Respect Party activists in Leeds, were posted on YouTube.
Mr Galloway, MP for Bradford West said: "We have declared Bradford an Israel-free zone.
"We don't want any Israeli goods; we don't want any Israeli services; we don't want any Israeli academics coming to the university or the college.