SAN JUAN, Puerto Rico (AP) — A hunger strike at the Guantanamo Bay prison has grown and now involves at least 21 men, a U.S. military official said Monday while denying reports trickling out from prisoners through lawyers that there is a more widespread protest and lives are in danger.

No prisoner faces any immediate health threat from the strike, though two have been admitted to the prison medical clinic because of dehydration, said Navy Capt. Robert Durand, a spokesman for the detention center at the U.S. base in Cuba.