SCARBOROUGH — Police believe a Scarborough man who was shot as he slept on his couch early Monday was intentionally targeted.

Police said the shooting of Bruce Glidden, 47, doesn’t appear to be random, but offered no motive for the attack and said no suspects have been identified.

While police believe the attack was specific to the family, they cautioned Scarborough residents to lock their doors and be aware of their surroundings.

Deputy Chief David Grover said during a news conference Monday afternoon that police do not yet know who shot Glidden, who was sleeping in a family room of his Ash Swamp Road home.

“The details lead us to believe this was specific to the resident or residents of the home,” Grover said without elaborating.

Glidden, who was shot twice, had been in stable condition at Maine Medical Center in Portland on Monday afternoon, but wasn’t listed as a patient at the hospital Monday night.

Grover said Glidden was interviewed by police and had been cooperative, but said he didn’t know the person who shot him.

Grover said Glidden was asleep when at least one intruder entered the home through an unlocked door and shot him twice. Glidden’s wife, Amy, and their two teenage children were asleep in other parts of the house and were not injured or threatened, police said.

A car owned by the Gliddens had its windows broken at the time of the shooting, police said. The windows were broken with an object, not by gunfire, Grover said.

Reached at home Monday, Amy Glidden declined to comment on her husband’s shooting.

A resident of the home called 911 to report the shooting around 1:30 a.m. Monday. Grover wouldn’t say who called.

Grover wouldn’t say why police believe the family was targeted. No weapon was recovered from the scene and none of the family’s possessions appeared to have been taken from the home.

Glidden is an owner of Glidden Roofing Corp. in Scarborough. Bill Cashman, another partner in the family business, declined to comment Monday, saying police had advised him not to speak to the media because of the ongoing investigation.

Glidden has no criminal record, according to a Maine State Bureau of Identification database.

Police encouraged anyone with information about the shooting to call the business line of the Scarborough Police Department at 883-6361 or the anonymous crime tip hotline at 730-4386.