GARLAND (CBSDFW.COM) – Garland Police said Sunday night that they were responding to a shooting at a convenience store in the 700 block of W. Walnut St.

According to police, a truck pulled up to the store. A man stepped out of the truck with a gun and began firing, walking into the store before running back to his truck.

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Police said the suspect is a “light-skinned” male with a ballcap and blue surgical mask. He had no shirt on and was wearing basketball shorts.

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Three male victims were killed and one male victim was transported to an area hospital in unknown condition after the suspect opened fire in a Texaco convenience store.

The suspect got away in a white pickup truck and remains at large. Police said they did not have a motive at this time.

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Police also said that the northbound lanes of Glenbrook are shut down between Austin St. and Glenbrook.