UPDATE 2/12/19 @ 10:55 p.m.

A preliminary report says an Ohio medical helicopter that crashed, killing three people last month, made "a sharp left turn" before tracking software indicated a problem.

A preliminary report from the National Transportation Safety Board said the Survival Flight helicopter made a turn to the right about 15 minutes after takeoff Jan. 29, followed by the left turn.

The report released Monday said a "no-tracking alarm" activated after the left turn. The report said the debris path in woods in rural southern Ohio stretched about 600 feet downslope.

The crash killed pilot Jennifer Topper and nurses Bradley Haynes and Rachel Cunningham.

Two other air-medical companies opted not to accept the assignment over concerns about weather that day.

Andrew Arthurs, a Survival Flight vice president, declined to comment Tuesday.

UPDATE 1/29/19 @ 4 p.m.

The names of the flight crew killed Tuesday morning in a medical helicopter crash have been released.

According to the Ohio State High Patrol, the victims were the pilot, Jennifer L. Topper, 34, of Sunbury, Ohio; and flight nurses, Bradley J. Haynes, 48, of London, Ohio, and Rachel L. Cunningham, 33, of Galloway, Ohio.

No passengers were onboard the helicopter.

Around 7:20 a.m., OSHP troopers were notified by Survival Flight that communication was lost with one of their helicopters. The helicopter left Mount Carmel Grove City Hospital in Grove City, Ohio, and was flying to Holzer Meigs hospital in Pomeroy.

Around 10:15 a.m., the OSHP found the wreckage of a Bell 407 helicopter east of state Route 278 and south of King Hollow Trail in Brown Township.

There were no reported injuries to anyone on the ground in the area.

The Ohio State Highway Patrol was assisted by Vinton, Meigs and Jackson counties sheriffs’ offices; Vinton County Emergency Management Agency; Ohio Department of Natural Resources; and the Vinton County Coroner’s Office.

UPDATE 1/29/19 @ 2:52 p.m.

Three people are dead after a helicopter crash in Vinton County. Ohio State Highway Patrol troopers say they all died at the scene.

Survival Flight lost communication with one of the its helicopters, according to OSHP. Troopers were notified around 7:20 a.m. Tuesday.

Investigators say the Bell 407 helicopter was flying to Holzer Meigs in Pomeroy when it crashed. It was coming from Mount Carmel Grove City -- a hospital in Grove City, Ohio.

Around 10:15 a.m., officers found the wreckage. They say it crashed east of OH-278 and south of King Hollow Trail in Brown Township.

Aside from the people on board, troopers say there were no other injuries (to others in the area.)

Investigators have not released the names of the flight crew. They are notifying family members first.

Troopers from the Jackson OSHP post and the patrol’s Special Response Team and Aviation Unit responded with assistance from the sheriff's offices in Vinton, Meigs and Jackson counties, the Vinton County Emergency Management Agency, Ohio Department of Natural Resources, and the Vinton County Coroner’s Office.

We have a crew at the media staging area.

Keep checking the WSAZ App and WSAZ.com for the latest information.

UPDATE 1/29/19 @ 12:35 p.m.

The Ohio State Highway Patrol confirms to WBNS that three people are dead after a medical helicopter crashed Tuesday morning in Vinton County.

The helicopter reportedly crashed near Lake Hope State Park in McArthur, Ohio.

OSHP says three people on a Survival Flight helicopter were on their way to pick up a patient when the crash occurred, WBNS reports.

WSAZ has a crew heading to the scene.

Keep checking the WSAZ App and WSAZ.com for the latest information.

ORIGINAL STORY 1/29/19

Emergency crews are responding to a helicopter crash Tuesday morning in Vinton County, Ohio.

Ohio State Highway Patrol troopers tell WSAZ the crash happened at Lake Hope State Park.

The 911 call came in around 7:30 a.m. Tuesday.

We have a crew heading to the scene.

Keep checking the WSAZ App and WSAZ.com for the latest information.