Detained Russian opposition figure Alexei Navalny is in “satisfactory” condition after he was moved to a prison hospital, the country’s jail authority said on Monday.

“Alexei Navalny’s health condition is considered to be satisfactory. A general practitioner examines him every day,” dpa news agency quoted the federal penitentiary authority as saying in a statement. “The patient has given his consent that vitamins be prescribed to him,” the statement said, adding that the hospital where he was moved is specialised in “dynamic observation of such patients”.