Lenwood “Lenny” Harris’s car was found Tuesday morning in Prince George’s County, almost three weeks after the Alexandria activist disappeared.

Harris’s 1994 Toyota Corolla was unoccupied when police located it at 5 a.m.

Harris, 53, was last seen at an Alexandria recreation center the evening of Sept. 21.

Police say they suspect foul play. Investigators found his cell phone discarded on the Woodrow Wilson Bridge, and surveillance cameras have twice captured people trying to use his credit cards at bank machines, once on King Street in Alexandria, and once in Prince George’s County.

His family and friends have been conducting desperate searches for him.

Harris, a popular civic activist and businessman, is a longtime fixture at Alexandria community meetings. He often speaks for the underprivileged and is a regular at city recreation centers, where he leads children in outdoor activities and helps them find tutors.

Anyone with information about Harris is asked to call 703-746-4711.

A Lenny Harris reward fund has been established at Virginia Commerce Bank.