LIMA, Ohio — An intensive manhunt was underway in western Ohio early Friday for the teen convicted of killing three students at a suburban Cleveland high school after his escape from prison.

Nineteen-year-old T.J. Lane escaped around 7:40 p.m. with two other inmates from Allen Oakwood Correctional Institution in Lima, about 80 miles south of Toledo. One inmate was captured, said Lima police Sgt. Andy Green.

Law enforcement personnel were searching woods and a residential area near the prison, Green said. He added that Lane and the other escapee are considered dangerous.

Officials in the Chardon School District, where Lane killed the students in February 2012, announced that all schools will be closed Friday.

At an interstate truck stop about 10 miles north of the prison Thursday night, officers from the Ohio Department of Rehabilitation and Corrections showed motorists and truckers photos of Lane and the other escapee. Wanted posters were taped to windows. Aircraft, including a helicopter with advanced infrared detection equipment, searched the area around the prison. Homes near the prison were brightly lit — indoors and out.

Authorities said they don’t believe Lane and 45-year-old Clifford Opperud are armed. Officials have not said how the men escaped from Allen Oakwood Correctional Institution. Opperud is serving a sentence for aggravated robbery, burglary, and kidnapping.

Ian Friedman, one of Lane’s former defense attorneys, tweeted Thursday, “I’ve been asked whether he is a danger. Answer is no one ever wants to return to prison for a life sentence. Plus, case facts speak.”