WASHINGTON, D.C. — The United States is condemning the shelling of a U.N. school in the Gaza Strip that was sheltering displaced Palestinians. Israel has acknowledged the shelling.


The U.S. did not say who’s responsible for shelling the school. Gaza officials say Israel shelled the school, killing 15 and wounding 90. The Israeli military said it fired back after soldiers were targeted by mortar rounds launched from the vicinity of the school.


White House spokeswoman Bernadette Meehan says the U.S. is also “extremely concerned” that thousands of Palestinians aren’t safe in U.N.-designated shelters in Gaza.


Meehan says the U.S. also condemns those responsible for hiding weapons in U.N. facilities in Gaza. She says the escalation shows the need for a cease-fire as soon as possible.