New Hampshire ? A couple convicted of tax evasion were arrested peacefully at their Plainfield home Thursday night after holing up at the fortress-like compound for months, the U.S. Marshals Service said.

Ed and Elaine Brown were convicted on federal tax charges in January and refused to turn themselves in to authorities when they were sentenced in April to five years and three months in prison.

It was not immediately clear how they were taken into custody.

Ed Brown, 65, and his wife, 67, have claimed the federal income tax is not legitimate.