麻豆约拍

Ten people, including a police officer, have been shot dead by a gunman in a supermarket in the city of Boulder in the US state of Colorado.

After an hours-long stand-off, aerial footage showed a man, who appeared only to be wearing shorts, being taken away in handcuffs.

Marc Sallinger is a local reporter with 9 News.

"I'm 25 years old and I have already covered four mass shootings in my time as a journalist"

(Photo: The supermarket where the shootings took place. Credit: Getty Images)