The scene cleared Friday night outside of NorthPark Center, where Dallas police responded to a disturbance in a parking garage.
A photo was posted on Twitter showing police surrounding a taxi just outside of a Nordstrom.
Witnesses on social media say they weren't allowed to leave the mall until the all-clear was posted.
One shopper told FOX 4 that she saw an officer with his gun drawn.
Dallas police have released few details about the incident, but confirmed that garage has now re-opened.