SANFORD (AP) — A Maine historical society says human bones and the remains of a Victorian-era coffin in an area that was converted from a cemetery into a school playground decades ago belonged to a child.

The bones were found last week by construction workers digging a water line. Police said authorities were aware the area had been a cemetery long ago, but they thought all of the people who had been interred had been moved. It was converted into a playground in the 1930s.

The Portland Press Herald reported (http://bit.ly/2pG5Rfy) the Sanford-Springvale Historical Society says the remains are of a child. The society is looking to get a DNA test on the remains and experts in antique wood identification are trying to learn more about the coffin.

City records show 77 bodies were exhumed and re-interred.