Overview

• The child discovered the device in his family's front yard in Hartline, Grant County, on Monday evening.
• Parents contacted authorities around 6:45 p.m., and deputies requested the Washington State Patrol bomb squad.
• Technicians confirmed the grenade remained live despite decades of exposure and transported it for a controlled destruction north of town.
• No injuries were reported, and officials identified the munition as a World War II–era type.
• Investigators have not determined how the grenade ended up on the property or how long it was there.