GREENE — Shots were fired Wednesday morning on Park Lane when a homeowner, a licensed medical marijuana caregiver, confronted three men trying to break into his house.

Police said the three suspects fired blindly at the homeowner as they fled and that one of them may have shot himself in the foot.

No one was hurt in the 10 a.m. incident on the dead-end street off College Road near the Lewiston-Greene town line.

Investigators from the Androscoggin County Sheriff’s Office described it as an attempted home invasion. They said the attack followed an attempted break-in at the same home Tuesday night. Investigators said there was an attempted break-in there in October 2016. In that incident, three teens fled after being shot at by the homeowner. Police said the suspects had been trying to steal marijuana. The resident is a licensed marijuana caregiver.

Local, county and federal agents were investigating Wednesday’s incident.

Police said the drama began when the homeowner called to report seeing three men, through surveillance equipment, trying to break into his home.

The men were described as white, bearded and wearing dark clothes.

When the homeowner confronted them, the scene turned violent.

“The suspects shot at the caller as they were running away,” Chief Deputy William Gagne wrote in a news release. “One of the males fired a warning shot toward the ground and may have shot himself in the foot. Several shots were reportedly fired blindly at the caller as the males were running away from him.”

Police said the suspects fled in a gray Pontiac G5 sedan or a similar model. They headed south on College Road, toward Lewiston.

The incident was being investigated jointly by the Androscoggin County Sheriff’s Office, Lewiston Police Selective Enforcement Team, the Maine Drug Enforcement Agency and Central Maine Violent Crimes Task Force.

Anyone with information is asked to contact Detective Troy Young at the Androscoggin County Sheriff’s Office at 207-753-2588.