The White House has condemned Wednesday’s deadly shelling of a UN shelter in southern Gaza, reiterating its position that Israel has a “responsibility to protect civilians” as it prosecutes its offensive against Hamas, AFP reports.

“We are gravely concerned by reports today of strikes hitting a UNRWA facility — with subsequent reports of fires in the building — in a neighbourhood in southern Gaza where more than 30,000 displaced Palestinians had reportedly been sheltering,” a spokesperson for the White House’s National Security Council, Adrienne Watson, said in a statement.

She called the loss of innocent life a tragedy and deaths and injury of children during the three-month war “heartbreaking.”

While the United States remains unwavering in its support for Israel to defend itself against “Hamas terrorists who hide among the civilian population,” Watson said, “Israel retains a responsibility to protect civilians, including, humanitarian personnel and sites.”

The NSC official also stressed that President Joe Biden remained committed to “working to increase life-saving humanitarian assistance into Gaza and to bring home all of the hostages held there.” The State Department also deplored the attacks on the UN facility and stressed that humanitarian workers must be protected so that they can keep providing lifesaving assistance to civilians.