BUFFALO, NY — An Erie County Sheriff's K-9 is riding off into the sunset after six years of service.

K-9 Hayco, who has served the Erie County Sheriff's Office and Deputy Ballantyne for six years, retired on Thursday.

"It is a bittersweet day at the Erie County Sheriff's Office," the Office wrote in a Facebook post. "We hate to see him go but we wish Hayco a long and happy retirement with his family."