Eight people, including five children, were found dead from gunshot wounds at a home in southwestern Utah, authorities said.
The bodies were discovered when officers carried out a wellness check at the property in the small town of Enoch.
There are no suspects at large or threats to the public, officials said in a statement, adding that the investigation is continuing.
Enoch Town Manager Rob Dotson said those who died – all members of one family – were well known in the town of about 8,000 people.
Authorities have not publicly identified the victims.
“Many of us served with them in church, in the community and went to school with these people,” Dotson said in a video statement Wednesday night.
“This community is hurting right now. They are feeling loss, they are feeling pain and they have a lot of questions,” he said, noting that authorities plan to release more information as it becomes available. .
Wellness checks based on calls to the police like the one that drove them to the residence are common when individuals are not seen for long periods, Mr Dotson added.
All five children attended schools in the Iron County School District, officials said in a letter sent to parents.
“It is with deep regret that we inform you of a tragic loss to our school community,” he said.
“This loss is sure to bring up many emotions, concerns and questions for our entire school district, especially for our students.”
He added: “We are saddened by the loss of our school community and will do everything we can to help you and your child as needed.”
Utah Governor Spencer Cox offered his condolences in a tweet Wednesday night.
“Our hearts go out to everyone affected by this senseless violence. Please keep the community of Enoch in your prayers,” he wrote.