A gunman lured police to his house by setting it on fire then shot one dead and wounded another, before being killed himself.
Emergency services were called to the blaze at a property in Tallahassee, Florida, at about 10.15am.
The first sheriff’s deputy was killed as he approached the house, according to the authorities.
The man then picked up the officer’s gun, walked down the street and used it to shoot a second deputy before he was fatally shot by another cop, who lived nearby and rushed to the scene after hearing the gunfire.
The wounded deputy was saved by his bulletproof vest and his injuries are not believed to be serious, said an official.
The names of the officers and gunman have not been released.
The shooting near Florida’s capital comes just two days after a police shootout at Florida State University left a gunman dead after he wounded two students and an employee.