HOUSTON (AP) — The Latest on the missing son of U.S. Rep. John Conyers (all times local):

1:15 p.m.

Longtime U.S. Rep. John Conyers says his family has notified the FBI and is “very worried” about the disappearance of his 21-year-old son in Texas.

The Detroit Democrat told The Detroit News (http://detne.ws/2fZEGIo ) on Thursday that his son, Carl Conyers, is “a very stable young guy” and that it’s not like him to disappear. The University of Houston student was last seen Tuesday by his roommate.

Houston police spokesman Kese Smith says the department is working with the FBI and Secret Service to find the missing student. Smith says the Secret Service is involved because Carl Conyers is the son of a congressman.

John Conyers was first elected to Congress in 1964 and is its longest-serving member.

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12:45 p.m.

Police in Houston say they’re searching for the son of longtime U.S. Rep. John Conyers after he was reported missing this week.

Twenty-one-year-old Carl Conyers, a student at the University of Houston, was last seen Tuesday by his roommate.

His girlfriend, Daisha Lewis, told WWJ Newsradio 950 in Detroit that she was supposed to meet him on campus Wednesday, but that he never showed. When she and friends checked his apartment they found some clothes and other items missing.

Houston police spokesman Victor Senties declined Thursday to say who reported Conyers missing, adding that police take every report of a missing person seriously.

Rep. Conyers’ communications director didn’t immediately respond to an email seeking comment.

The Detroit Democrat was first elected to Congress in 1964 and is its longest-serving member.