Palestinians inspect the damage to a classroom at a United Nations school where displaced people were seeking refuge, as a bloodstain can be seen on the floor after it was hit in Israeli shelling in Beit Lahiya, northern Gaza Strip, Saturday, Jan. 17, 2009. A United Nations official condemned the Israeli shelling attack that struck a U.N. school in the northern Gaza Strip and killed two people. Spokesman Chris Gunness says the school was crowded with 1,600 people who had sought shelter from Israel’s three-week offensive in Gaza.(AP Photo/Khalil Hamra)