The department said K-9 Unit Axel died from natural causes last Thursday.
Axel was a Belgian Malinois who began his career with the department two years ago. The department said he was a social and lovable dog that participated in numerous K-9 presentations at schools and universities throughout the Valley.
The Fresno Police Department is launching a fundraising campaign in his honor in hopes of finding a replacement. Those interested can contact the department through their Facebook page.