The head of the Palestinian mission of Doctors Without Borders has said there is no way to evacuate hospitals in northern Gaza and that he could not tell his staff to abandon their patients.

“It’s the worst I’ve ever seen. People are trapped. People have nowhere to go,” Leo Cans said in an interview with Channel 4 News.

The United Nation says all 10 hospitals in northern Gaza have been given evacuation warnings. These facilities are housing thousands of displaced civilians.