Ten killed in mass shooting at US grocery store

At least 10 people, including a police officer, were killed in a mass shooting at a grocery store in the US state of Colorado. The suspect has been arrested by the police from the shooting site. The deadly shooting took place at the King Soopers grocery store in the city of Boulder. The police reached the spot after receiving a phone call about the incident. A large number of police officers escorted people out of the supermarket and detained the suspect. The live video showed the suspect, who was in handcuffs by three police officers. According to the police, the weapon used in the shooting was an AR-15-style rifle. A witness told The Denver Post that the gunman, "let off a couple of shots, then was silent, and then he let off a couple more. He wasn't spraying". "Like my fellow Coloradans, I am closely watching unfolding events in Boulder," tweeted Colorado Governor Jared Polis. "My prayers are with our fellow Coloradans in this time of sadness and grief as we learn more about the extent of the tragedy," he added.