Israel Air Force jets attacked targets in the northern and southern Gaza Strip early Friday morning. An IDF spokesperson said that the targets in northern Gaza were buildings used for terror activities and the targets in southern Gaza were three smuggling tunnels. The spokesperson confirmed direct hits in both operations.

Palestinian rescue services say three Palestinians were wounded by Israeli tank fire in the latest surge of fighting in the Gaza Strip. It was not clear if they were militants or civilians.

The spike in violence began Thursday when Hamas launched an anti-tank missile at an Israeli school bus near the border, seriously wounding the driver and a 16-year-old boy. This triggered strikes by IDF planes and artillery that killed five Palestinians: three militants, one Hamas policeman and a civilian.

Hamas said that the attack on the school bus was in retaliation for an IDF air strike on Saturday that killed three Palestinian militants.

Hamas announced Thursday that a unilateral cease-fire on the part of all militant factions in the Gaza Strip was to come into effect at 11 P.M. local time, following a meeting between the factions.

But Deputy Defense Minister Matan Vilnai told Army Radio that Israel would continue to act so that this type of fire will not continue and the people behind the fire will regret it.

Palestinian President Mahmoud Abbas urged Western powers to intervene "to stop this aggression," the official Wafa news agency reported from Ramallah in the West Bank. Abbas also urged Palestinian militants not to give Israel an excuse to hit Gaza.