Washington, D.C.'s train station was briefly evacuated Friday afternoon after a security guard shot a man who stabbed a woman, police said.
D.C. police said the guard chased the man after the guard saw him stab the woman in what is believed to be a domestic dispute. Both the woman and male suspect were being treated for their injuries.
Multiple people described a "pop pop" noise coming from the lower level by the food court in Union Station, just blocks from the U.S. Capitol.
"Everybody was screaming," a witness who gave her name only as Connie told TheBlaze. "Before they started screaming we thought we heard a "pop pop."
"So then the police started coming down the stairs, and telling us to go up out that direction," Connie added, pointing to the station's main entrance.
Antoinette Pullman, a manager of Pepper Palace located inside the station, told reporters that she "definitely heard shots."
Police said there was no apparent connection between the incident and the 14th anniversary of the Sept. 11 terror attacks.
"Obviously, with this being 9/11, fears were heightened and escalated," D.C. police Commander Jeff Brown told the Associated Press.
Union Station is home to Amtrak's headquarters. About 90,000 people pass through the transportation hub each year.