Police have blocked the road to the Greylock Glen during a search of the area related to cases connected to convicted serial killer Lewis Lent.

ADAMS, Mass. — Investigators from a number of different law enforcement agencies will spend the next several days on Mount Greylock following up on leads on unsolved cases.

Officers will concentrate their efforts in the Greylock Glen area of the Mount Greylock State Reservation in Adams.  

They are following up on leads from Lewis Lent cases and concentrating their efforts on areas not searched previously.

Lent, who had lived in North Adams, has confessed to three murders. The serial killer is currently serving consecutive life sentences with no parole for the murders of 12-year-old Jimmy Bernardo, of Pittsfield, and Sara Anne Wood, also 12, of Frankfort, N.Y. In 2013, he confessed to the 1992 murder of 16-year-old James Lusher of Westfield.

Neither Lusher nor Wood's remains have been found. In 2013, police spent three days searching Becket Pond for Lusher's body. Authorities believe Lent is connected to several other killings.

Investigators are asking anyone who may have witnessed past suspicious activity or who may have information pertaining to the Lent investigation to contact state police detectives at 413-499-1112.  

Those involved in the search of the Glen include state police detectives assigned to the district attorney's office, state police tactical operations, the Berkshire County sheriff's office, the Berkshire County Law Enforcement Task Force, including the Adams, Pittsfield, Great Barrington, Williamstown and Dalton police departments, Environmental Police and members of the New York State Police.