Dallas Police Chief U. Renee Hall described the response time of a weekend armed robbery near Oak Lawn as "unacceptable", according to neighborhood advocates who met with Hall this week.

Dallas Police responded to an armed robbery call early Sunday morning near The Tin Room bar on Hudnall Street near Maple Avenue.

WFAA has learned the first 911 call was placed at 11:54 p.m, but the call was not dispatched to officers until 12:49 a.m.

Once dispatched, officers responded to the Priority 2 call in 12 minutes, which is in-line with stated response time goals for fire, robbery and criminal assault calls.

According to the bar owner, who asked not to be identified, he called 911 three times in a one hour time period before watching three suspects board a DART train at the Inwood Station and get out of the area before police could arrive.

DPD told WFAA on Thursday investigators have not located any images of the suspects from DART cameras located at the station.

On Tuesday, Northwest Patrol division took to Facebook requesting additional eyewitnesses come forward.

Rafael McDonnell with Resource Center tracks crime and safety in the predominately LGBT neighborhood north of downtown.

"It was very concerning. I thought 'oh no here we go again'," McDonnell said in reference to unsolved attacks in Oak Lawn dating back to 2015.

"When we met with Chief Hall on Tuesday to her credit she actually brought that up that the response time in her words was 'unacceptable'," he said.