The Frisco (TX) Police Department announced on Thursday that a medically-related issue claimed the life of a four-and-a-half year old Belgian Malinois K-9.

The agency said on Facebook, "It is with a heavy heart that we announce the passing of Frisco Police Department K-9 Officer Boris, who ended his watch on Wednesday, August 7, 2019, due to a medically related issue. He was a 4 1/2-year-old Belgian Malinois. K-9 Boris was an integral part of our K-9 unit, the Frisco Police Department, and the community. At the time of his death, K-9 Boris was at a specialized police-dog training facility where he continued training and remained active while awaiting a new handler to be assigned."

During his watch, K-9 Boris assisted in making 79 drug-related arrests, was used in more than 100 narcotics sniffs per year, was deployed seven times for tracking suspects, and was successful in six no-bite suspect apprehensions.

K-9 Boris had been with the department for just over two years.