Dallas Area Rapid Transit police said officers were searching late Friday for a suspect who ran off after shooting a passenger on a train near Akard Station in downtown Dallas.

The shooting briefly halted train service in the area for about an hour.

DART police did not immediately provide an update on the condition of the injured passenger.

Friday’s shooting marks the third violent incident on a DART train since late September.

On Sept. 29, Daniel Gormley of Irving was shot and killed on a train near the Market Center Station. Less than a week later, on Oct. 5, another passenger was shot and killed near the St. Paul Station in downtown Dallas. Arrests were made in both homicide cases.

On Friday, workers on their lunch break passed the scene as police investigated.

Chris Chambless, a regular DART rider, said the recent incidents have made him more alert.

“I don’t know how you control it,” Chambless said. “There’s a number of folks out here, you obviously have security as best you can, but I don’t know that you’re going to catch all of it and be able to control all of it.”

In October, DART Police Chief Charles Cato told NBC 5 that uniformed officers or fare enforcement personnel are now present on every train or station platform as part of increased security efforts in the Central Business District.