text:  The Israeli military says it struck two U.N. schools in Gaza City in the north on Thursday. In a statement, the military said steps were taken to, quote, mitigate harm to uninvolved civilians. The U.N. says it is still working to verify reports and casualties are not immediately known. On Wednesday, the Israeli military struck houses next to another U.N. school full of displaced people in central Gaza, in the city of Khan Yunis.