At least 22 people, mostly women and children, have been killed in an Israeli strike on a school compound Saturday, Palestinian officials said, with Israel saying it targeted Hamas fighters sheltering there.

The death toll from a "targeted attack" by the Israeli military on a Beirut suburb Friday rose to 37, including seven women and three children, Lebanon's health minister said on Saturday, as Israel and the militant group Hezbollah continued to trade strikes. The U.S. also urged Americans in Lebanon to leave the country.

In northern Israel, fighter jets roared as they streaked across the border late Saturday.