The Palestinian militant group that assassinated Israeli cabinet minister Rehavam Zeevi in 2001 says it has another politician in its sights.

A spokesman for the Popular Front for the Liberation of Palestine made the threat against Israeli legislator Avigdor Lieberman.

The spokesman identified himself as Abu Jamal and spoke on the group's radio station.

Lieberman wants to transfer Israeli Arab towns to Palestinian jurisdiction and annex large Jewish settlements in the West Bank to Israel.

Abu Jamal spoke in response to Arab-Jewish clashes in a mixed Israeli town and said the Popular Front for the Liberation of Palestine would defend Israeli Arabs.

He said: "Our fingers are on the triggers of our weapons and we know where to direct our fire ... The fate of the Zionist Lieberman will be similar to Zeevi's."