HOLT — No one was injured by explosive devices detonated in the front yards of two homes, according to the Okaloosa County Sheriff’s Office.

A homeowner on Lighthouse Church Road in Baker discovered her destroyed mailbox Thursday morning, the sheriff’s office reported. She heard a large explosion around 10:30 p.m. Wednesday but thought it was a power transformer exploding. A firework or other device had been placed in the mailbox.

A homeowner on Richman Road in Holt awoke to find an area of burned grass in his yard along with an explosive-type device, the sheriff’s office reported. The homeowner investigated an explosion at about 9:30 p.m. Wednesday, but didn’t see anything.  

The sheriff’s office is helping the State Fire Marshal’s Office investigate both these cases.