PLANO, Texas  — Nine people, including a suspect who was fatally shot by an officer, have died after a man opened fire during a gathering to watch football at a suburban Dallas home, police said Monday.

Plano police Chief Gregory W. Rushin said at a Monday afternoon news conference that one of two people hospitalized after the Sunday night shooting had died.

An officer responding to a report of shots fired at about 8 p.m. confronted the suspected shooter and opened fire, killing the suspect. Police then found the nine gunshot victims — seven were dead and two were taken to the hospital.

“The first responding officer actually heard gunshots taking place inside the residence,” police spokesman David Tilley said.

Rushin said the officer approached the house from the back and saw bodies in the backyard before confronting the suspect inside.