BIRMINGHAM, AL — Authorities don’t suspect foul play in the death of a man who drove a cupcake truck in Birmingham.

The Jefferson County Coroner’s Office says 40-year-old Shane Caldwell was found dead inside a food truck he drove for Dreamcakes Bakery.

The body was found after the truck was reported missing Sunday afternoon. Passersby saw the vehicle and notified police.

Officials haven’t released a cause of death but they say it’s not considered suspicious.

The owner of Dreamcakes posted a message on the company’s Facebook page saying Caldwell may have died of a heart attack after parking the truck near his home.

The bakery’s owner Jan Moon expressing sympathy for Caldwell’s family and friends. “He was a kind and generous person who often did things beyond the call of duty,” the statement read.

Caldwell died of a possible heart attack after parking the truck near his home, Moon said in the statement.

An autopsy is being conducted.