UNRWA is close to a possible breaking point for its operations in the Gaza Strip due to increasingly complicated conditions, said its head on Wednesday.

"I will not hide the fact that we might reach a point that we won't be able anymore to operate," UNRWA chief Philippe Lazzarini told journalists at a news conference in Berlin.

"We are very near to a possible breaking point. When will it be? I don't know. But we are very near of that," he said.