Advocacy groups called decision a 'death sentence for thousands of patients', with not enough hospitals remaining in operation

The first aid in two weeks was allowed into northern Gaza following the letter, but the UN's acting humanitarian chief Joyce Msuya described it as a “trickle”. In the letter sent on Sunday, the US expressed deep concern at the humanitarian situation and said Israeli actions had contributed to it.

The Biden administration warned Israel this week that Washington could suspend military assistance if humanitarian aid flows in Gaza are not increased within a month.