Three dead in Colorado's Walmart shooting

An unidentified gunman opened fire at a Walmart store in the US state of Colorado on Thursday, killing three persons including a woman

Hundreds of emergency responders ringed the Thornton Town Centre shopping complex for hours after the shooting was reported around 5 am IST. The Walmart is part of the centre.

Thornton Police said "it was not an active shooter" but advised people to stay away from the area.

"Shooting just occurred at Walmart, 9900 Grant St, multiple parties down. Please stay away from the area," Thornton Police Department said in a tweet.

A large number of police vehicles were seen in the parking lot of the Walmart. No other details were immediately available.

Local news channels said a few ambulances were rushing to the Walmart, describing the scene as "chaotic".

A press conference by the police department was expected soon when the report last came in.