Multiple people were killed in a shooting at a WalMart in El Paso, Texas on Saturday and more than one suspect was in custody, an official said, after panicked shoppers fled in the latest U.S. mass shooting.

Olivia Zepeda, chief of staff to El Paso Mayor Dee Margo, said there were multiple fatalities and multiple suspects arrested. She could not immediately say how many people were killed, or give any other details about the suspects.

Mass shootings are common in the United States. On Sunday, a teenage gunman opened fire with a an assault-style rifle on the crowd at a food festival in Northern California, killing three people before fatally shooting himself.
   Atleast 18 reported dead and dozens injured in Texas  Walmart shooting, according to ABC News; suspect in custody

As many as 18 people were killed and dozens more were injured, and one male suspect is in custody, after a mass shooting at an El Paso, Texas, Walmart on Saturday morning, officials said.

The wounded ranged in age from a 2-year-old child to an 82-year-old victim.

El Paso Police Department Sgt. Robert Gomez said that “we have ruled out multiple shooters,” adding, “We have no information … about what the motive is.”

The shooting began in the parking lot outside the Walmart, an eyewitness told ABC News Radio.

Police did not officially issue a fatality number, but law enforcement sources told ABC News that at least 18 people were killed and dozens more injured.