CENTRAL FALLS, R.I. (WPRI) — Police are investigating after skeletal remains were found Monday at a work site in Central Falls.

The remains were found by a construction worker around 8:45 a.m. in the area of Broad and Sheridan streets, according to police.

Carlos Silva said his company has been excavating the site for about a week.

“I put the machine in the hole and started doing the grating … all of a sudden, I see body parts coming out of the bucket,” Silva recalled. “I stopped, had to call the cops.”

Detectives and the state medical examiner determined the remains are human and have been there for “quite some time,” according to Central Falls Police Maj. Christopher Reed. R.I. State Police brought in their mobile crime unit to analyze the remains.

Reed told 12 News the area was once a business, but the building was knocked down about a month ago and is going to eventually be some sort of housing.

It’s unclear at this time if the investigation is criminal in nature.