They say Maine State Police K-9 Preacher, a two-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.

A police dog shot at the end of a long standoff in Portage, Maine, on Monday died hours later, officials said Tuesday.