WASHINGTON — Some UN and US humanitarian officials have expressed alarm as the Trump administration considers whether to provide increased US logistical and intelligence support for an Emirati/Saudi coalition military operation to take the Red Sea port of Hodeidah from Yemen’s Houthi rebels.

The proposed operation comes two years into a grinding civil war in Yemen that has killed 10,000 people and led to a stalemate, and as aid groups warn the impoverished nation of 27 million people could be on the brink of famine.

Proponents of the operation, including officials in the United Arab Emirates and Saudi Arabia as well as some in the State Department and Pentagon, say it could pressure the Houthis into agreeing to return to the negotiating table, and bolster relations between Washington and Gulf allies. Critics of the proposal, including former USAID and Obama National Security Council (NSC) officials and experts at the United Nations, say that if the operation to take the port from the Houthis is successful, it would create a new front line through which it would not be possible to bring food at the needed scale into Sanaa, the capital of 2 million people, and could tip large swaths of the country into famine.

The United Nations special envoy for Yemen, Ismail Ould Cheikh Ahmed, strongly warned against escalating the military conflict.