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.

Israeli fire killed at least 12 people and wounded others as they headed toward two aid distribution points in the Gaza Strip run by an Israeli and U.S.-backed group, Palestinian health officials and witnesses said Sunday.