(KMZA)--The Pottawatomie County community of St. Mary's is mourning the loss of an officer.

Officer Mark Lamberson died unexpectedly Saturday while on duty.

Lamberson began his service with the St. Mary's Police Department in 2013. Prior to that, he worked for the Pottawatomie County Sheriff's Office as a jail deputy.

St. Mary's Police Chief Derek Cid said the loss of officer Lamberson is tragic for all who knew, worked and loved him.

The Kansas Bureau of Investigation is leading the investigation into the circumstances surrounding his death, but foul play is not suspected.

Over the next few days, Pottawatomie County Sheriff’s Office deputies will be responding to calls for service within the city limits of Saint Marys.

Officer Lamberson is survived by his wife, children, and parents.

In lieu of flowers, we request donations be made for the family to Community First Bank, 215 S Seth Child Road, Manhattan, Kansas: C/O: FOP Lodge 17 / SMPD.

Funeral services are pending at this time.