BRISTOL, Conn. (AP) Police say a man trying to intervene in a domestic assault on two family members has been injured in a sledgehammer attack.

Police responded to a domestic disturbance Sunday night and allege David Buchelli assaulted two family members.

An unidentified man visiting the residence tried to intervene, but police say Buchelli assaulted him with a sledgehammer and a patio block causing severe facial injuries. The victim was taken to Bristol Hospital.

Buchelli was arrested and charged with assault, criminal mischief and breach of peace. The 53-year-old Buchelli also is accused of vandalizing a vehicle.

He was held on a $100,000.