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FRANKLIN COUNTY, Ind. – Indiana State Police are working to figure out what caused a small plane crash in Franklin County that killed three people and a dog.

The crash happened around 9 p.m. Saturday behind a home in the 5000 block of Hamburg Rd. in Oldenburg, which is near the Ohio border.

Officials say the single engine Cessna (Tail Number N761YZ) plane departed from Kansas City, Missouri and was headed to Frederick, Maryland when something went wrong.

When officers arrived to the scene, they located the fire from the wreckage in a heavily wooded area. Fire officials responded and were able to extinguish the flames.

State police say they believe they know who the victims are, but are waiting to release their identities. Autopsies will be performed on all three victims on Monday.

“At this time we won’t release the names. The FAA and NTSB are going to be involved and we want to make sure we confirm the identities of those deceased that were in the aircraft,” said Sgt. Stephen Wheeles of Indiana State Police.

One dog that was on board survived this crash and was found near the scene. It was taken to a local veterinarian to be treated for injuries.

The Indiana State Police is conducting a joint investigation with the Federal Aviation Administration (FAA) and the National Transportation Safety Board (NTSB).  Police say the investigation is ongoing and may take weeks to complete.

FOX59 will continue to update this story as more information becomes available.