The U.N. agency for Palestinian refugees said it was shocked and "unable to verify" Israeli claims that one of its schools harbored Hamas militants.
At least 35 people were killed, mostly women and children, and many more were injured in an Israeli strike on Thursday at a school that sheltered 6,000 displaced Palestinians in central Gaza when it was hit, Philippe Lazzarini, commissioner-general of the United Nations Relief and Works Agency for Palestine Refugees in the Near East, or UNRWA, said.