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.

There was no official response from the Israeli government, a day after the United States threatened consequences if it didn’t let more relief into Gaza within 30 days.

The US has written to Israel, giving it 30 days to boost humanitarian aid access in Gaza or risk having some US military assistance cut off. The letter, sent on Sunday, amounts to the strongest known written warning from the US to its ally and comes amid a new Israeli offensive in northern Gaza that has reportedly caused a large number of civilian casualties.