Axios reports, citing two Israeli officials, that the Biden administration put a hold on a shipment of US-made ammunition to Israel last week. 

It is the first time since the October 7 attack that the US has stopped a weapons shipment intended for the Israeli army.

The sources also noted that Washington's decision has raised serious concerns for Israeli officials who are trying to understand the reason for the delay.

Axios says the White House declined to comment, and the Pentagon, the State Department, and the Israeli Prime Minister's Office didn't immediately respond to questions.