Israel has been pounding Gaza from the air after Hamas launched a surprise terror attack on Saturday, killing more than 900 people and seizing about 130 more. Authorities in Gaza said Israel's airstrikes had hit a refugee camp, a hospital and mosques, and had killed 687 people and injured a further 2,900. As the bloody conflict enters its fourth day, shocking photos from the ground provide a horrifying insight into the atrocities taking place as both sides continue to trade blows and lives, with innocent children and civilians caught in the middle.