Three Israelis have been killed and more than 20 injured in shooting and stabbing attacks in Jerusalem and central Israel, Israeli police say.
Two were killed when two assailants, who were identified as Arabs, shot and stabbed passengers on a bus in Jerusalem before being shot by police.
Another Israeli died after being run down and stabbed elsewhere in the city.
Later, a Palestinian was killed in clashes with Israeli forces in the West Bank city of Bethlehem, medics said.
Near-daily stabbings by Palestinians have left dozens of Israelis dead and wounded over the past fortnight. Several attackers and at least 17 other Palestinians have also been killed.
Israel’s Prime Minister Benjamin Netanyahu said it planned new security measures that would "settle its accounts with the murderers, with those who try murder and with all those who assist them.