The feds have lodged charges against the illegal immigrant arrested at a Revere hotel that is part of Massachusetts’ emergency assistance shelter program.

Leonardo Andujar Sanchez, 28, already faced state charges on firearms — he allegedly had an AR-15 and high-capacity feeding devices and by virtue of his immigration status was not allowed to have any weaponry — as well as possession of nearly 5 kilograms, or roughly 11 pounds, of fentanyl, following his arrest by local police on Dec. 27. He was staying at the Quality Inn, which confirmed to the Herald that it is closed to the general public.

Now federal prosecutors have leveled their own charges against him: possession with intent to distribute more than 400 grams of fentanyl and being an alien in possession of a firearm who has entered the United States unlawfully

Sanchez, a national of the Dominican Republic, according to his attorney in the state case, is scheduled to be arraigned in federal court in Boston’s Seaport at 12:15 p.m. today.

The federal fentanyl charge carries a minimum of a decade and up to life in prison as well as a fine of up to $10 million while the charge of unlawful possession of a firearm carries a penalty of up to five years in prison and a fine of up to $250,000.

Sanchez had lived at the shelter since Oct. 15, according to a spokesman for the Executive Office of Housing & Livable Communities (EOHLC), which partially runs the state emergency shelter program.

The office says it conducts warrant checks of all EA residents every 30 days and all residents undergo background checks when they apply for a shelter.

However, Sanchez himself did not apply for the program but instead accompanied an unidentified person who had successfully applied to the program, according to comments made by Gov. Maura Healey on Tuesday.

Healey had a day earlier ordered an inspection of all state-run emergency shelters and a “full review” of the intake process, stemmed from Sanchez’s arrest and the serious charges against him.

This is a developing story.