Washington has said it is “deeply concerned” about a strike on a Jordanian military hospital in Gaza that wounded seven people, underscoring its opposition to air strikes on health facilities, AFP reports.

“We are deeply concerned that they were injured,” State Department spokesman Matthew Miller said, praising the Jordanian government’s “incredible work establishing this field hospital” and saying its work most continue.

Miller did not condemn the strike nor did he say who was responsible. It took place Wednesday in Gaza City, with Jordanian news agency Petra saying seven health workers were hurt. The Arab League condemned the strike. “As we said before, we don’t want to see hospitals struck from the air,” Miller said.