Authorities Investigate Cause Of Fatal Helicopter Crash In Noble County

New details about a deadly helicopter crash have emerged since one person died in the crash Sunday.

The Oklahoma Highway Patrol said the first calls about the crash just north of Perry came in around 5 p.m. Sunday.

"The helicopter was on fire and there was one pronounced dead on the scene," OHP Trooper Eric Foster said.

First responders airlifted a second victim to OU Medical Center in Oklahoma City. The crash site was near I-35 and State Highway 412, just southwest of the Perry Municipal Airport.

Troopers had the area blocked off for several hours.

According to the Federal Aviation Administration, it was a Bell 206B helicopter.

"It was privately owned," Foster said. "It wasn’t corporate owned. It wasn’t a medical helicopter anything like that."

The National Transportation Safety Board told News 9 that one of its investigators visited the crash site Monday. The cause of the crash remains unknown.

The NTSB said it's in the early stages and an investigator is documenting the scene, examining the helicopter as well as collecting radar data, weather reports and any air traffic control communications.

The two victims have not been identified.

"We’re unsure right now as to what seat or what role they played in the helicopter," Foster said.

The NTSB said a typical investigation could take 12 to 24 months to complete.

We’re still unsure of the victim's condition at OU Health.