The United States has called for an investigation into the deadly Israeli airstrike on a school building run by the UN agency for Palestinian refugees (UNRWA) in central Gaza and told Israel it must be “fully transparent.” US State Department spokesman Matthew Miller said on Thursday that even if Israel’s army intended to target Hamas militants, the claims of children killed in the strike “show that something went wrong.” Miller said it was Israel’s right to target Hamas militants while also stressing the obligation to minimize civilian harm and take every possible step to do so. He said the U…