MIAMI (AP) — The U.S. military says a couple more prisoners have been designated as hunger strikers at Guantanamo Bay.

Lt. Col. Samuel House says 94 men are on the hunger strike, up two from a day earlier. Lawyers for prisoners have said the military has been undercounting the number of hunger strikers since the protest began in February. The men are protesting conditions and their indefinite confinement at the U.S. base in Cuba.

House said Thursday that 17 of the 94 prisoners on hunger strike are being given liquid nutrients through a nasal tube to prevent dangerous weight loss. Three of the striking prisoners are at a hospital on the U.S. base in Cuba for observation.

The U.S. holds 166 prisoners at Guantanamo, most without charges.