MOUNT VERNON - Mount Vernon police are trying to figure out how a dead body ended up in a city vehicle.

Authorities say a city worker was going to take the vehicle in for servicing this morning when he discovered a body inside.

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Officials say the body is that of a 57-year-old man, who was not a city employee.

Lot 11, the public parking lot where the vehicle was located, holds several city vehicles.

Authorities have not yet determined a cause of death.