Meredith Johnson, METRO's Executive Vice President for Communications, told ABC13 a man and a woman had a domestic disturbance on the train before the man got off at the station and drew a weapon while standing on the crowded platform.
According to police, an operator reported that the suspect had a firearm around 8:35 a.m.
Then, officers said they fired at the suspect. The man was taken to a hospital and later pronounced dead, authorities said.
No other injuries were reported.
METRO said Red Line trains are currently single-tracking between the Downtown Transit Center and UHD while the investigation continues. A bus bridge has been established between the Downtown Transit Center and Burnett to support service.
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