DEIR AL-BALAH: An Israeli airstrike on a hospital courtyard in the Gaza Strip early Monday killed at least four people and sent flames sweeping through a packed tent camp for people displaced by the war, leaving more than two dozen with severe burns, according to Palestinian medics. The Israeli military said it targeted militants hiding out among civilians, without providing evidence. In recent months it has repeatedly struck crowded shelters and tent camps, alleging that Hamas fighters were using them as staging grounds for attacks.