NEW YORK - The 40-year-old son of former ABC News anchor Ted Koppel was found dead in an apartment in upper Manhattan after a day of bar-hopping, a detective said yesterday.

Andrew Koppel was declared dead about 1:30 a.m. Monday in the apartment in the Washington Heights neighborhood, Detective John Sweeney said. The cause of death had not been determined, but no evidence so far indicates criminality, Sweeney said.

Koppel was appointed attorney for the city Housing Authority's civil-litigation division in 2001, a post he resigned in 2008, the agency said yesterday.

Ted Koppel was the longtime anchor of the ABC News show "Nightline." Andrew Koppel, of Queens, was one of his four children.

-Associated Press