GAZA (Reuters) - Palestinian Islamists vowed revenge on Israel on Friday for killing a senior Hamas leader and his family, and said all options including suicide bombs were now open to "strike at Zionist interests everywhere."

There was no sign of a ceasefire on the seventh day of the conflict, in which at least 424 Palestinians have been killed and 2,000 wounded. Four Israelis have been killed by Palestinian rockets.

"We will not rest until we destroy the Zionist entity," said Hamas leader Fathi Hammad at the funeral of Nizar Rayyan, who was killed along with four wives and 11 children by an Israeli missile which hit his house on Thursday.

In the Jordanian capital, Amman, riot police fired teargas to disperse hundreds of protesters marching on the Israeli embassy, chanting: "No Jewish embassy on Arab land."

A statement from Gaza by Hamas spokesman Ismail Rudwan said Israel's "terrorism, massacre and holocaust will not break us and will not force us to raise a white flag ... killing begets killing and destruction begets destruction."