Israeli airstrikes surge in Gaza, killing dozens at a time in destroyed homes, witnesses say

Israel escalated airstrikes across the Gaza Strip on Tuesday, crushing families in the rubble of residential buildings, as health officials said hundreds of Palestinians were killed in the past day and medical facilities were shut down because of bomb damage and lack of power.

The soaring death toll from the bombardment is unprecedented in the decades-long Israeli-Palestinian conflict. It augurs an even greater loss of life in Gaza once Israeli forces backed by tanks and artillery launch an expected ground offensive aimed at crushing Hamas militants.