Officials said the incident happened as the Cessna Citation was landing at Elizabethton Municipal Airport at 3:40 p.m.
An NBC Sports spokesperson said in a statement that Earnhardt, his wife Amy, his 15-month-old daughter Isla and two pilots were safe after the crash.
Update 2:35 p.m. EDT Aug. 16: Investigators will spend at least two days collecting evidence from the scene of the crash, Ralph Hicks, a senior investigator with NTSB, told reporters Friday.
Authorities have reviewed surveillance footage from near the crash site which showed the plane bounced at least twice before coming down hard on one of the landing gears, Hicks said.
"You can actually see the right main landing gear collapsing in the video," he said. "The airplane continued down the runway off to the end, through a fence, and it came to stop ... on Highway 91."
Hicks said the crash site was about 1,000 feet past the end of the runway.
Elizabethton- NTSB investigators are going over every portion of the plane that Dale Earnhardt Jr and his family were in when it crash. The latest on their investigation today on eyewitness news at noon and five. pic.twitter.com/8IsQEhvMGI
— Dave Faherty (@FahertyWSOC9) August 16, 2019
The plane had taken off about 20 minutes before the crash from Statesville, North Carolina, Hicks said. The aircraft was not equipped with a data recorder, though Hicks said other instruments recorded some data. Officials are also analyzing a cockpit voice recorder.
Authorities continue to investigate the cause of the crash.
Update 2 p.m. EDT Aug. 16: Authorities are providing an update Friday on the investigation into Thursday's plane crash.
Update 1:50 p.m. EDT Aug. 16: Officials with the Federal Aviation Administration said no injuries were reported as a result of the crash, although the Cessna 680A aircraft was destroyed.
The Earnhardt family and the pilots were the only passengers listed on board when the crash happened.
Authorities are expected to provide more updates on the incident at 2 p.m. news conference Friday.
Update 11:50 a.m. EDT Aug. 16: Officials with the National Transportation Safety Board are scheduled to hold news conference Friday afternoon to update the public on the investigation into Thursday's crash.
NTSB to hold media briefing at 2:00 pm ET today near the site of Thursday's runway excursion accident involving a Cessna 680 business jet at the airport in Elizabethton, Tennessee.
— NTSB_Newsroom (@NTSB_Newsroom) August 16, 2019
Update 9:25 a.m. EDT Aug. 16: Earnhardt's sister, Kelley Earnhardt Miller, thanked God, supporters and medical staff early Friday in a Twitter post after Earnhardt and his family survived a fiery plane crash in Tennessee.
"Finally laying down for the night and want to say thank you to God, the angels among us, our pilots, first responders, medical staff, our NASCAR family and everyone that has reached out in whatever way to support us all," Earnhardt Miller wrote in a post around 12:30 a.m. Friday.
Finally laying down for the night and want to say thank you to God, the angels among us, our pilots, first responders, medical staff, our NASCAR family and everyone that has reached out in whatever way to support us all. ❤️
— Kelley Earnhardt (@EarnhardtKelley) August 16, 2019
A nurse who witnessed the crash told WSOC-TV her instincts kicked in Thursday when she saw the jet skid off the runway.
"(The) first thing that went through my mind was, 'Lord, I hope there was nobody in the plane that's still in the plane,' because it was completely engulfed," she told WSOC-TV. She added that as she tried to help, the plane, it was smoking out the back and then, all of a sudden, it caught on fire."
An NBC Sports spokesperson said Thursday that Earnhardt was taken to a hospital but released a short while later.
Authorities are investigating the cause of the accident.
Update 9 a.m. Aug. 16: Investigators with the National Transportation Safety Board were in Elizabethton on Friday morning, WJHL reported.
JUST IN: The NTSB is now in Elizabethton investigating Thursday's plane crash. The FAA is also expected to be on scene shortly. Federal authorities are trying to determine the cause of the plane crash that involved the Earnhardt family and two pilots. https://t.co/yKLB6ALfHj
— WJHL (@WJHL11) August 16, 2019
Agency officials said Thursday that two NTSB officials were being sent to investigate the incident. Federal Aviation Administration officials were also expected to be on the scene Friday, WJHL reported.
Original report: Retired NASCAR driver Dale Earnhardt Jr. and his wife Amy Reimann were aboard a private jet when it crashed at the Elizabethton Airport, in Tennessee.
BREAKING: The plane that went off the runway in Elizabethton has an N number of N8JR which is registered to JRM- Junior Motorsports. Pics from Dale Campbell. pic.twitter.com/25B90gnz7y
— Ricky Matthews (@WCYB_Ricky) August 15, 2019
Carter County Sheriff Dexter Lunceford told WJHL that Dale Earnhardt Jr. was taken to an area hospital and his injuries are described as cuts and abrasions.
Lunceford also said that his wife and child were onboard as well as the family dog. The pilot and one other passenger was also onboard.
Earnhardt Jr. sister, Kelley, tweeted that everyone involved survived the crash.
I can confirm Dale, Amy & Isla along with his two pilots were involved in a crash in Bristol TN this afternoon. Everyone is safe and has been taken to the hospital for further evaluation. We have no further information at this time. Thank you for your understanding.
— Kelley Earnhardt (@EarnhardtKelley) August 15, 2019
"We're incredibly grateful that Dale, his wife Amy, daughter Isla, and the two pilots are safe following today's accident," NBC Sports said in a statement. "After being discharged from the hospital, we communicated with Dale and his team, and we're all in agreement that he should take this weekend off to be with his family.
"We look forward to having him back in the booth next month at Darlington."
According to WJHL, emergency crews responded to the crash involving the Cessna Citation Latitude business jet that ran off the end of the runway Thursday afternoon.
It's not clear if the plane was departing or arriving.
Earnhardt retired as a full-time racer in 2017 and has been working as an analyst for NBC. He is part of the scheduled broadcast team for Saturday night's Cup Series event in Bristol, Tennessee.
The Associated Press contributed to this report.