Metro Transit police say it happened just before 3:30 p.m. on the station’s Red Line platform.
“The incident occurred after an apparent verbal confrontation between the victims and the suspect on the platform,” according to a statement from WMATA.
The attack, police said, left a male victim unconscious and not breathing. He was taken to the hospital in critical condition. A woman also suffered a non-life-threatening wound. She was taken to the hospital for treatment and was later released, WTOP News reported.
For a time, the attack forced Glenmont-bound Red Line trains to bypass Metro Center during the investigation.
MA/PR