(NECN) - Crews dug near Mossy Pond in Clinton, Mass. Thursday.
NECN is told it's an investigation involving Clinton police, Fitchburg police and state police from the Worcester County District Attorney's Office.
Pictures from the NECN chopper show a dog in the area and crews digging with shovels.
One police official told us it's connected to a cold case.
Stay with NECN as this story develops.