At least 10 killed in mass shooting in U.S. Colorado(1/4)

Police officers work on the shooting scene, a King Soopers grocery store in Boulder, Colorado, the United States, March 22, 2021. At least 10 people, including one police officer, were killed in a mass shooting in Boulder, Colorado, on Monday afternoon, the police said, adding a person of interest is in custody. (Photo/Agencies)

Police officers work on the shooting scene, a King Soopers grocery store in Boulder, Colorado, the United States, March 22, 2021. At least 10 people, including one police officer, were killed in a mass shooting in Boulder, Colorado, on Monday afternoon, the police said, adding a person of interest is in custody. (Photo/Agencies)

Police officers work on the shooting scene, a King Soopers grocery store in Boulder, Colorado, the United States, March 22, 2021. At least 10 people, including one police officer, were killed in a mass shooting in Boulder, Colorado, on Monday afternoon, the police said, adding a person of interest is in custody. (Photo/Agencies)

Police officers work on the shooting scene, a King Soopers grocery store in Boulder, Colorado, the United States, March 22, 2021. At least 10 people, including one police officer, were killed in a mass shooting in Boulder, Colorado, on Monday afternoon, the police said, adding a person of interest is in custody. (Photo/Agencies)