UPDATED: Middlesex County Sheriff's Officer Killed in Single-Car Crash

UPDATED: 1:30 p.m.

Middlesex County Sheriff's employee Edward “Teddy” Dillon III, 27 of Lowell, was killed in a crash in Billerica this morning. Dillon was a member of the Middlesex Sheriff’s Office since 2008.

Dillon worked the midnight to 8 a.m. shift at the Middlesex House of Correction in Billerica. His job included conducting routine perimeter checks of the facility and nearby Middlesex Sheriff’s Office property.

The Sheriff's office issued the following statement:

“My thoughts and prayers, as well as those of the entire Middlesex Sheriff’s Office, go out to Officer Dillon’s family, friends and colleagues. We know the work of correction officers is difficult and dangerous, but that does nothing to ease the pain and shock when we lose one of our own. The Middlesex Sheriff’s Office will work to ensure that our officers and the Dillon family have the support they need as we grieve Teddy’s passing.”

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are investigating a single-car crash involving a vehicle, killing the driver, according to FOX25.

The single-car crash happened Wednesday at 4 a.m. on Treble Cove Road in Billerica. The name of the driver has not been released.

The sheriff's headquarters is in Billerica, but there is an office in Framingham.

Massachusetts State Police spokesman David Procopio, in a statement, said a state police crash reconstruction team has been sent to the scene of the crash, but that no other details were being released.

Fox25 reported the police cruiser sustained heavy front-end damage.

There is no word on the cause of the accident.