Colorado Walmart shooting
© Twitter/Michael KonopasekEmergency personnel respond to a shooting at a Walmart Super Center in Thornton, CO.
Police are urging people to stay away from a Walmart in Thornton, Colorado, where a shooting has occurred.

A massive police presence has responded to the Walmart at 9900 Grant Street.

Two adult males have been killed, and one adult female has been transported to a hospital, Thornton police confirmed shortly after 8:00 pm local time (10pm Eastern).

"We've got multiple parties down, we're still trying to ascertain what their conditions are," Thornton police officer Victor Avila told Reuters.

The store was "self-evacuated," Avila said, as customers and employees ran away from a volley of gunshots.


Thornton Police Chief Nick Mets tweeted that the Aurora SWAT team was responding to assist as needed.

Earlier, Mets tweeted "prayers with the people of Thornton" and emergency responders.

Police have confirmed this is not an active shooter situation.

Thornton is a city 11 miles north of Denver and has a population of around 136,000.

Local news reporters are near the scene talking with witnesses who either evacuated the Walmart or were close enough to witness the commotion afterward as police and emergency responders arrived.

Accounts from witnesses are conflicting and unconfirmed.

One shopper who captured video from inside the evacuated Walmart told local reporters that the shooter walked out of the Walmart, but then he would not provide further comment.


Some witnesses reported hearing up to 11 gunshots, while others reported hearing about multiple shooters using fully automatic rifles.

Other people said they knew friends or colleagues still inside the Walmart hiding.

Police were seen escorting some people out of the Walmart and into a van shortly before 8:00 pm local time.