Police said they are continuing to investigate a Ha-lawa vandalism spree that left at least nine vehicles and one home with broken windows late Monday night.

Police Maj. Dave Kajihiro, of the Pearl City substation, said detectives also are looking into whether the short but destructive spate of criminal property damage cases along on Kalaloa Street is connected to a nearby robbery shortly after midnight Tuesday.

Up to four people may have been involved in the window-smashings. Windows or windshields of the vehicles were smashed, police said, perhaps by bats or clubs.

Kajihiro said Monday's incident in Halawa Valley Estates, which is near Aloha Stadium and the Pu'uwai Momi housing complex, likely is not related to a string of graffiti tagging incidents that occurred in the Enchanted Lake neighborhood of Kailua early Monday morning.

Because blunt instruments were used in Halawa, detectives could not lift fingerprints, he said.

Kalaloa resident Edison Chong got a double whammy. Not only did the vandals smash about a dozen jalous-ies on the front of his house, his son's Mazda Millennia was damaged in the Chongs' carport.

Chong said he and other family members were toward the back of the house when the incident happened between 10:30 and 11 p.m.

He said he heard a thumping sound, like that of a basketball being bounced against a wall.

"I didn't hear people yelling or anything," Chong said. By the time he stepped outside, other neighbors had begun to survey the damage.

Chong said he suspects his house was the only building hit because it's one of the few in his neighborhood without a fence.

He said he's thinking about putting one up now.