EL PASO, Texas Multiple people were killed and one person was in custody after a shooter went on a rampage Saturday at a shopping mall, police in the Texas border town of El Paso said.

Police responded in the early afternoon to an active shooter scene at the Cielo Vista Mall, which is near Interstate 10 on east side of the city, and were advising people to stay away from the area.

Shortly after, Sgt. Enrique Carrillo, a police spokesman, said a suspect was in custody and there was no longer danger to the public.

El Paso, which has about 680,000 residents, is in West Texas and sits across the border from Juarez, Mexico.

Presidential candidate and former U.S. Rep. Beto O’Rourke says he’s distraught by the news of a mass-shooting in his hometown of El Paso, Texas.

An emotional O’Rourke told reporters on Saturday in Las Vegas that he had spoken by phone to El Paso Mayor Dee Margo, the city’s sheriff and U.S. Rep. Veronica Escobar. He says they were still learning details about the attack at or near the Cielo Vista Mall, in which police say multiple people were killed and a male suspect was taken into custody.

O’Rourke said he planned to return home immediately to be with his family. He asked “for everyone’s strength for El Paso right now. Everyone’s resolve to make sure that this does not continue to happen in this country.”