Law-enforcement agents found "multiple victims of gunshots" Monday in a home in Byron, Wyoming, the sheriff's office says.
Some died, some survived, according to Big Horn County Sheriff Ken Blackburn on Monday evening.
Five people were shot, and two were taken to medical care, the sheriff told Cowboy State Daily in an interview. Law enforcement agents performed life-saving care efforts on scene as well.
Someone called 911 at about 1:30 p.m. Monday to report shots fired in a home on the south side of the town of Byron, says the statement.
Sheriff's personnel responded immediately, along with Wyoming Highway Patrol and Lovell Police Department personnel.
"While securing the residence law enforcement officers observed multiple victims of gunshots within the residence, both alive and deceased," a statement from the sheriff said.
Two victims were taken by ambulance to the North Big Horn Hospital in Lovell for emergency care, the sheriff told Cowboy State Daily.
Blackburn has asked Wyoming Division of Criminal Investigation to help process the scene. It is being treated as a crime scene, he added.
He warned community members against gossiping, saying a rumor that law enforcement agents had fired on scene - for example - was not true, and people generally should be careful to wait for the facts, out of respect for the victims and the investigation.
"At this time there is no active threat to the citizens of Big Horn County," the statement reads, adding an expression of gratitude for Wyoming Highway Patrol, Lovell Police Department, North Big Horn Hospital and Ambulance, Powell Valley Hospital Ambulance, and DCI.
"Our hearts and prayers go out to all those (who) have been affected by this tragedy," the sheriff's statement says.
Byron is a small farming community in northwest Wyoming, about 12 miles southwest of Lovell.
This is an ongoing story. We will provide updates.
