Five people, including two children, were found dead in a house in the US state of Oklahoma, police said.
All five appear to have been murdered, according to police Sergeant Gary Knight.
“It wasn’t a carbon monoxide problem or anything like that. It was five people who were killed,” he added.
Mr. Knight said a man and a woman were among those found dead in the southwest Oklahoma City home.
Mustang Public Schools Superintendent Charles Bradley said two other victims were current students — one in sixth grade, the other in ninth grade — while the fifth victim was a recent graduate of the school system.
He wrote an email to families Monday, saying the school community was “shocked and our hearts are broken. This tragedy simply defies belief.”
According to a report in local newspaper The Oklahoman, police said a 10-year-old child found the bodies.
The incident is being investigated as a shooting after a gun was found on a man’s body, they added.