“The only way to reach a level of confidence is by having a sustained flow of aid over a period of time,” she said.

The European Union is considering partially suspending Israeli access to funding under its flagship research programme, in what would be the bloc's first action taken against Israel in response to its actions in Gaza.

"The tragedy is that Israel is getting the blame for the lack of humanitarian care, when the fact is, it's Hamas that started the war," Mike Huckabee said.