Archeologists have joined the investigation into three skulls unearthed by a Florida plumber who was installing pool pipes at a new home. The skulls may have been buried for more than 30 years.

The archeologists joined detectives and crime scene technicians at a home in the Carriage Pointe subdivision in Winter Garden, Fla., Monday after a plumber located a partial skull buried there while working on installing a pool, police said today. Authorities then located two more human skulls during their own digging.

No other bones were located, which ruled out any chance of the plot being a former cemetery, police said.

A purse or bag also located in the area contained a piece of paper inside of it dated from 1978, according to the report. Police quickly checked records to see if the town or county had reported missing individuals during that year, but ruled out the possibility, according to Lt. Keith Ralston.

Ralston said he thought a horse farm and orange grove had predated the subdivision, while ABC affiliate WFTV reported the land had once been covered in trees and wetlands.

"We just built our home here a year and a half ago and that's a scary thing," resident Debra Brockway told the station.

Police said the remains may have been as deep as 10 to 15 feet before the dirt was moved in order to level the ground for construction of the subdivision.

"Crazy stuff happens all the time, so I don't even know what to think," Dave D'Amato told WFTV. "It was undeveloped land, so anything could've been going on back then."

Police said they have no idea how the bones got there but would open an investigation which would include further archaeological study, the report said. The bones have been sent to a crime lab for testing.

Investigators ask that any one with information to call Crimeline at (800) 423-TIPS.