A man who was shot by a Chicago police officer during a confrontation Friday afternoon at the CTA Grand Red Line station was initially stopped by officers for crossing between train cars, police said.

One person was shot by police at the CTA Grand Red Line station, a source told NBC 5. Sky 5 was over the scene.

The incident happened just after 4 p.m., sparking a heavy police presence at the CTA station located at State Street and Grand Avenue.

Video shared with NBC 5 afternoon shows two Chicago police officers struggling with a man in the approximately two minutes leading up to the moment shots were fired.

The officers used a taser and mace on the suspect, but weren't able to detain him. At one point, a female officer yells "give me your hands" as one shot is fired. The male suspect then runs up the escalator — followed by the two officers — as two additional shots are fired.

The unidentified suspect was taken to Northwestern Memorial Hospital and underwent surgery, Chicago Police Department Deputy Superintendent Barbara West said. He was last reported in critical, but stable condition.

Red Line trains were initially standing due to the police activity, but later resumed with delays.

[Significant Delays] Red Line trains are standing at Grand due to police activity. Crews working to restore service. — cta (@cta) February 28, 2020

The shooting comes on the same day Chicago Mayor Lori Lightfoot and CPD officials touted a new safety plan aimed at reducing crime on the CTA.

Per protocol, the officers involved in the shooting were placed on administrative duties.

Civilian Office of Police Accountability, the civilian oversight agency of the CPD, and the Cook County State's Attorney's Office both responded to the scene.