Israel said it is investigating how an airstrike hit one of Gaza’s main hospitals on Monday, insisting it was not targeting journalists or civilians killed in the blast. Israel’s chief of the general staff has already ordered an inquiry after multiple missiles hit the Nasser Hospital — the largest in southern Gaza — on Monday. Hamas-tied Palestinian health officials said that at least 20 people were killed, including four journalists. “The IDF regrets any harm to uninvolved individuals...