At least ten people were killed in a shooting at a store in Boulder, Colorado, including a police officer.
In Boulder, Colorado, police officers patrol the exterior of the King Soopers grocery store. AFP photo
A suspect who was wounded at the scene has been apprehended.
Local officials in the United States arranged a press conference today, hours after the shooting.
The shooting occurred about 3 p.m. (local time) at a King Soopers convenience store in the Table Mesa region of Boulder, a city at the eastern foot of the Rocky Mountains about 45 kilometres north-west of Denver.
According to Boulder Police Chief Maris Herold, ten people were killed in the assault at King Soopers. Among them was 51-year-old police officer Eric Talley, who she said was the first to react to the shooting, which occurred about two miles (over three kilometres) from the flagship campus of the University of Colorado.
Local tv outlets broadcast video of a shirtless, bearded man in boxer shorts being taken away from the shop in handcuffs before being laid on a stretcher and put into an ambulance. The guy in prison seemed to have a bloody knee and walked with a limp.
Yamaguchi also mentioned that a second incident identified by police at a 5-kilometer-away apartment building as potentially related to the supermarket shooting turned out to be unrelated.
The massacre was the second deadly mass shooting in the United States in a week, following gun violence last Wednesday that killed eight people, including six Asian women, at three locations in and around Atlanta. A 21-year-old man has been charged in connection with the killings.