New York prison officials say a predawn electrical fire rousted more than 700 prisoners from their beds at Sing Sing.
Spokeswoman Linda Foglia says no inmates or workers were injured and the prison in Ossining is secure. Generators are replacing some lost electricity.
Foglia says the fire started at about 3:40 a.m. Monday in the basement of the 185-year-old prison.
She says the 686 inmates in Block A and 29 prisoners in disciplinary housing were evacuated to other secure areas including the prison yard. Foglia says all prisoners were back in their cells by midafternoon.
Sing Sing houses about 1,730 inmates in Ossining, on the Hudson River 30 miles north of New York City.