Eight people have been shot dead at a residential home in Plano, Texas on Sunday night (US Time).
Police say they were called to the scene, in the area of West Spring Creek Parkway, shortly after 8pm when gunshots were heard.
According to CBS News, a responding officer shot dead the suspect.
"He actually heard gunshots and that's when he made entry into the house," a police spokesman said.
"That's when he observed several victims inside then engaged the suspect. And that's when he shot him."
No officers were injured during the incident where at least two others were taken to hospital with gunshot wounds.