A six-year-old girl has died in a shooting and house fire that left five family members dead, including the gunman.
Police in Phoenix, Arizona, in the US, said the gunman was the brother or son of the victims.
Police officers dodged bullets and wore breathing gear to enter the burning home to help the victims while the gunman was still alive. Some firefighters stood on the roof to extinguish flames bursting from the home.
The mayor of Phoenix Greg Stanton praised the heroism of police officers and firefighters and said the incident involved "unspeakable violence".
A Fire Department spokeswoman said the gunman set the house on fire.
Police Sgt Trent Crump said an emergency caller from the home described the shooting as a domestic situation.