[Update 10:11 p.m.] Authorities Investigating Three Dead Bodies Found in Waltham

[Updated, 10:11 p.m.] Middlesex District Attorney Gerry Leone briefed the media on the crime tonight. Check out our

[Updated 6:47 p.m.] District Attorney Gerry Leone has just arrived at the crime scene on Harding Avenue in Waltham.

[Updated 6:20 p.m.] Main Street is congested, but open to traffic, and Harding Avenue is closed off, says Waltham Patch Editor Ryan Grannan-Doll, who is on the scene.

The following is a news release from the Middlesex County District Attorney's office:

Authorities are conducting an investigation into a triple fatality that occurred in Waltham, Middlesex District Attorney Gerry Leone and Waltham Police Chief Thomas LaCroix informed the public today.

At approximately 2:25pm today, Waltham police responded to an apartment at 12 Harding Street in Waltham after receiving a report that three dead bodies were discovered.  Upon arrival, police located three decedents in the apartment.  Identification of the bodies is pending notification of next of kin and the deaths have been deemed to be suspicious.

Waltham Police and Massachusetts State Police Detectives assigned to the Middlesex District Attorney’s Office have commenced an immediate investigation into the deaths.

Autopsies will be conducted by the Office of the Chief Medical Examiner (ME).

The investigation is in its early stages and the investigation, including the circumstances of the fatalities, remains ongoing.

Stay with Waltham Patch for the latest on this story.