It is with great sadness that we tell you K9 Preacher was killed in the line of duty last night. Maine State Police K9 Preacher, a two-year-old Belgian Malinois, was killed in the line of duty last night during a tactical team operation in Portage. Preacher and his handler, Sgt.… pic.twitter.com/UxoUkYpfEU

They say Maine State Police K-9 Preacher, a four-year-old Belgian Malinois, was killed during a tactical team operation in Portage.

A domestic dispute in Portage Lake that escalated into a day-long standoff Monday resulted in the death of a 29-year-old man, a fatally injured police K-9, and a wounded sheriff's deputy, authorities said.