The 44-year-old television sports analyst and retired driver Dale Earnhardt Jr. is safe and in hospital for evaluation after his plane crashed in east Tennessee on Thursday, his sister said on Twitter.

Earnhardt's sister, Kelley Earnhardt Miller, tweeted that Earnhardt, his wife, Amy, and their 15-month-old daughter, Isla, also were on the plane along with two pilots.

"Everyone is safe and has been taken to the hospital for further evaluation," she tweeted. "We will have no further information at this time."

"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."

Federal Aviation Administration officials said a Cessna Citation rolled off the end of a runway and caught fire after landing at Elizabethton Municipal Airport at 3:40 p.m. Thursday. FAA officials said the preliminary indication is that two pilots and three passengers were aboard the jet.

The National Transportation Safety Board tweeted that it's sending two representatives to Elizabethton to begin investigating the crash.

Earnhardt retired as a full-time driver 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.

This incident comes 26 years after former driver and 1992 Cup champion Alan Kulwicki died in a plane crash while on his way to the spring race at Bristol from a promotional appearance in Knoxville, Tennessee. That crash at Tri-City Regional Airport in Blountville, Tennessee, killed a total of four people.

Earnhardt was part of Rick Hendrick's racing team in 2011 when Hendrick broke a rib and a collarbone while on a small jet that lost its brakes and crash landed in an airport at Key West, Florida. Hendrick’s son, brother and twin nieces were among 10 people killed in a 2004 crash of a plane traveling to a race in Virginia.

This isn't the first fiery crash for Earnhardt. He still has a burn scar on his neck from a crash at Sonoma in 2004 during warmups for an American Le Mans Series race that left him with second-degree burns.

Earnhardt has a history of concussions that plagued him over his final years as a driver.

He won NASCAR's most popular driver award a record 15 times with 26 career Cup victories.