Police in the US state of Colorado say 10 people were killed in a shooting at a supermarket. They say they have detained a suspect.
The police say a gunman opened fire at a King Soopers supermarket in Boulder on Monday afternoon.
Police surrounded the facility, and took a suspect into custody.
Boulder police told reporters that a police officer was among the 10 people killed.
They said the male suspect is receiving medical treatment for injuries. The man was not identified. The police are looking into his motive.
The site of the shooting is about 40 kilometers from the state capital, Denver.
The incident comes after a man fatally shot eight people at three locations in the state of Georgia on Tuesday last week. Six victims were of Asian descent.