An Israeli tank killed two Palestinian teenagers after it fired tank shells at a group of Palestinians in northern Gaza this morning.
Witnesses said two 15-year-old Palestinian boys were killed in the blast and that they had been on their way to school in a town near the camp.
The deaths brought the toll to 77 Palestinians killed in one of the army's biggest and bloodiest offensives in four years of conflict.
A source in the Israeli military claimed the two were trying to launch a Quasam rocket.