A 28-year-old Southeast woman committed suicide yesterday by lying down on Metro subway tracks in front of a morning rush-hour train, authorities said.

Belinda L. Wiggins, of the 1900 block of Shipley Terrace SE, was killed instantly at 7:16 a.m. when she was run over by a train approaching the Farragut North station on Metro's Red Line, according to D.C. police Detective Lou Hennessy.

Trains were delayed for two hours all along the Red Line, which runs between Silver Spring and the Van Ness-UDC stations, according to Metro spokeswoman Marilyn Dicus.

Deputy D.C. Medical Examiner Stuart Dawson declared the death a suicide. "She apparently just walked down the tracks and lay down," Hennessy said. He said that Wiggins has had "a recent history of despondency," but declined to elaborate.

Wiggins, who worked at Chesapeake & Potomac Telephone Co. evaluating operators' performance, was killed in the subway tunnel 50 feet south of the Farragut North station platform by a train bound for the Van Ness-UDC station, Dicus said.

The train's operator saw the woman on the track in front of him but was unable to stop in time, Dicus said.

Metro officials closed the Van Ness-bound track as police investigated at the scene, she said. Trains in both directions were rerouted onto the other track. Metro resumed normal operations at 9:30 a.m., she said.

Wiggins' suicide was the sixth in Metro tunnels in the last five years, Dicus said, with all of the victims hit by moving trains.

"She was a good employe, and we're all shocked," said Web Chamberlin, a C&P spokesman. "We're not aware of any personal problems with her."

Wiggins worked for the phone company for the last eight years, first as an operator and recently as an operator service evaluator at its 930 H St. NW office.