South Dakota officials say they believe someone set the fires that destroyed two vehicles.
Aberdeen Fire and Rescue and the Aberdeen Police Department responded to a local trailer park around 12:30 a.m. Tuesday.
Police say no one was injured, but several residents were evacuated.
The fire chief says the owner of both vehicles also lost a van to a fire in May. He says that fire was attributed to an electrical issue, but it will likely be re-evaluated.
The investigation is ongoing.