The leader of Lebanon's militant Hezbollah group says "millions" of Israelis will be displaced in case of a new conflict between the Shiite group and the Jewish state.

Friday's remarks by Sheik Hassan Nasrallah, during a rally in southern Beirut, were in response to a comment from Israel that a future war could displace more than a million Lebanese.

Jerusalem Post on Thursday quoted an unnamed Israeli military official as saying that if given no choice, Israel would "evacuate 1 million, 1.5 million residents in Lebanon, and act."

Nasrallah says Hezbollah "will displace millions of Israelis if a war is imposed on Lebanon."

Israel and Hezbollah fought a monthlong war in 2006 that killed 1,200 Lebanese, including hundreds of civilians, and 160 Israelis and caused heavy damage to Lebanon's infrastructure.