Eagle Med Crash Kills Patient, Injures 3 Crewmembers 20 Yards Away From Oklahoma Care Center (VIDEO)

An EagleMed helicopter crashed in an Oklahoma parking lot killing one person and injuring three on Tuesday night, according to reports.

The EagleMed helicopter had reportedly taken off from Choctaw Nation Health Care Center in Talihina, Okla., and was heading to Tulsa carrying one patient and three crewmembers on board.

The helicopter went down about 20 yards from the hospital, according to KXII News 12.

Michael David Wilson, 49, was the patient who died in the accident. There are no published reports confirming whether Wilson died because of pre-existing condition or because of injuries sustained in the crash.

The care center staff hurried to the crash site to help rescue the helicopter passengers.

"All the proper procedures were followed and we actually ended up with enough staff wanting to come in, we had to turn them away because we didn't want to overcrowd the scene," Brandy Griffin with the Choctaw Nation Health Services told KXII News 12.

The site has been secured by the National Transportation Safety Board (NTSB) to conduct an investigation.

"It takes a while before we determine the cause of an accident," NTSB spokesman Keith Holloway told The Associated Press. "We don't look at the company, we look at issues. If there is something that reveals itself, we'll look at it."

The crash is the third EagleMed helicopter accident since 2010. Another one of the company's helicopters crashed into a field near Kingfisher, Okla., in 2010. The accident also killed two people and injured one person.

In more recent reports, an EagleMed helicopter crashed outside an Oklahoma City nursing home this past February. The accident critically injured one person and killed two people.

The Commission on Accreditation of Medical Transport Systems reportedly will examine the company's safety practices and determine if EagleMed is at fault for the crash.

"Currently, EagleMed is working with the NTSB and FAA," EagleMed spokesperson Robbie Copeland said in a statement. "We're helping them with their investigation by providing the information they need from us."