BRIDGEWATER, Mass. (WHDH) -- The state police bomb squad responded to a home on Grange Court after three homemade explosive devices were found on the front lawn Sunday.

Two of the devices exploded before crews arrived. The other was detonated by the bomb squad.

Investigators believe a property dispute between neighbors may have led to someone placing the bombs on the lawn.

“There's some areas in the yard that have some burn marks. There's also an area on the concrete that has some burn marks,” said Chief George Rogers, Bridgewater Fire Department.

Firefighters said the homemade explosives made of chlorine and rubbing alcohol went off in the middle of the night, startling a homeowner without waking many of the neighbors. A bomb squad was called in when an additional explosive was found.

“Nobody in the neighborhood was in danger at that because it was away from the houses. But it's certainly serious enough for us to be concerned,” said Rogers.

Investigators said the explosions seem like an isolated incident. They suspect a feud between neighbors prompted someone to drop the homemade bombs, but they still can't tell what the suspect cooked up.

"It's certainly concerning. I hope it ends soon, whatever's going on," a woman said.

“The devices were brought to the bomb lab to be investigated. This is more than a firecracker. This is some type of chemicals,” said Rogers.

One neighbor didn't even know about the dispute.

"All the neighbors know each other. Tom and myself were out for a walk on the same street -- just a friendly neighborhood," said Lou Deandrade, a neighbor.

Fire investigators said they found plastic containers containing chemicals near the burn marks on the pavement. Police have not charged anyone yet with the crime.

Evidence has been sent to the lab and police are following leads.