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.

The Israeli military told AFP that troops had fired "warning shots" at individuals that it said were "advancing in a way that endangered the troops".

Medics in Gaza said 45 people in total were killed in Israeli airstrikes across the enclave on Saturday.At least 15 Palestinians were killed and 50 wounded by airstrikes in