A Palestinian teenager has blown himself up and killed three Israelis at a crowded Tel Aviv market.
The militant Popular Front for the Liberation of Palestine claimed responsibility for the suicide attack that also wounded more than 30 people.
Israeli Prime Minister Ariel Sharon said Monday's attack shows Palestinian authorities have not taken steps to stop terrorists. A spokesman for Palestinian leader Yasser Arafat, who is hospitalized in Paris, said he condemned the attack.
Hours after the blast, Israeli troops killed three armed Palestinians in the West Bank city of Nablus. At least one of the dead was a member of the Al-Aqsa Martyrs Brigades militant group.