The EagleMed Eurocopter crashed at about 11:25 p.m. on March 12, 2015 near Lake Eufaula. The crashed killed the pilot. The two other employees on board were taken to a McAlester hospital.

It's the fourth fatal incident in Oklahoma since July 2010 involving a medical helicopter operated by EagleMed.

In July 2010, an EagleMed helicopter crashed four miles south of Kingfisher killing the pilot and a nurse. A paramedic survived the crash. The helicopter was en route to Okarche to pick up a patient.

5/9/2013 Related Story:NTSB: Mid-Air Stunt Causes Fatal EagleMed Crash, Lone Survivor Speaks Out

In February 2013, an EagleMed pilot and nurse died in a crash in northwest Oklahoma City. A paramedic was injured. The helicopter had just taken off from Baptist Hospital after transporting a patient from Watonga.

2/22/2013 Related Story: Names Released Of EagleMed Helicopter Crew Members Killed, Injured In Crash In OKC

In June 2013, an EagleMed helicopter taking off from the Choctaw Nation Health Care Center in Talihina en route to Tulsa struck a light pole. Three EagleMed employees and a patient were on board. The employees survived, but the patient died.

6/20/2013 Related Story: NTSB: Medical Helicopter Hit Light Pole Before Deadly Talihina Crash

EagleMed operates out of five satellite bases in Oklahoma located in Hugo, McAlester, Oklahoma City, Stillwater and Tahlequah.