BOSTON -- A Westminster man was killed Sunday night after exchanging gunfire with police.

Michael A. Membrino, 49, was pronounced dead at Henry Heywood Hospital in Gardner following an incident that began in a Fitchburg bar and ended in gunfire in Westminster, police said.

According to witnesses, Membrino brandished a handgun while making threats at Partners Pub in Fitchburg. He was located outside his home by the Westminster Police.

Membrino, who was wearing body armor, initiated an exchange of gunfire with police and retreated toward his home, police said. The Massachusetts State Police STOP team, Air Wing, and K9 units provided additional assistance.

Membrino was found near the front of his home suffering from a gunshot wound.