LILLINGTON, N.C. (AP) — Robert Morgan, a former U.S. senator who also served in the North Carolina Legislature and as the state’s attorney general, has died. He was 90.

A spokeswoman for O’Quinn-Peebles Funeral Home in Lillington who asked that her name not be used said Morgan died Saturday at his home. The cause of death was not immediately known.

Morgan, a Democrat, served in the U.S. Senate from 1975 until 1981. After losing re-election in 1980, Morgan joined the State Bureau of Investigation, where he worked until 1992 before returning to his general law practice in Lillington.

Morgan was a state senator from 1955 to 1969 and N.C. attorney general from 1969 to 1974.

In 2000, he became the founding president of the N.C. Center for Voter Education, a nonprofit and nonpartisan organization.