BARTOW, Fla. -- The Medical Examiner has confirmed the cause of death of four passengers in the tragic plane crash that happened Christmas Eve.

The twin-engine plane went down just after takeoff around 7:15 a.m. Sunday, Dec. 24 at Polk County's Bartow Municipal Airport., Sheriff Grady Judd said, with emergency operators receiving a call minutes later.

MORE: Dense fog likely to blame for twin-engine plane crash at Bartow airport

The cause of death for four of the passengers has been determined to be blunt force trauma and all of the deaths were ruled as accidental.

MORE: Here's what we know about the 5 Christmas Eve plane crash victims

All four of the autopsies were performed Wednesday. Authorities are still waiting on the toxicology results to determine the cause and manner of death of John Shannon, a local and prominent attorney.

Make it easy to keep up-to-date with more stories like this. Download the 10 News app now.

Have a news tip? Email, visit our Facebook page or Twitter feed.