Gaza's Hamas-run police force said it killed 12 members of an Israeli-backed militia after detaining them early Thursday. Hours earlier, an Israeli- and U.S.

The UN human rights chief said Israel's "means and methods of warfare" were inflicting "horrifying, unconscionable suffering".

JERUSALEM (AP) — Israel is supporting armed groups of Palestinians in Gaza in what it says is a move to counter Hamas. But officials from the U.N. and aid organizations say the military is allowing them to loot food and other supplies from their trucks.