South Korea plane's final moments captured on video before hitting concrete barrier, triggering explosion

The crash on Sunday killed 179 people on board. Only two survived, a man and a woman who were both crew members. 

Footage aired by South Korean television channels showed the plane skidding - and apparently without its landing gear deployed. The jet overran the runway and hit a barrier, triggering a fiery explosion. Footage showed thick plumes of smoke billowing from the plane, which was engulfed in flames. 

Kyle Bailey, former a FAA safety team representative in the U.S., told Fox News that it appeared to him that the aircraft was traveling too fast as it skidded on the runway before striking what he believed was a structure that housed instrument landing equipment.

"I think that's pretty much what spelled disaster for that airplane," he said.

While it will likely take months to determine the cause of the crash, Lee Jeong-hyeon, chief of the Muan fire station, said workers were looking into various possibilities, including whether the aircraft was struck by birds.

President Biden issued a statement about the crash on Sunday, offering assistance from the U.S., if necessary.

"Jill and I are deeply saddened to learn of the loss of life that occurred as a result of the Jeju Airlines accident in Muan, Republic of Korea," Biden said. "As close allies, the American people share deep bonds of friendship with the South Korean people and our thoughts and prayers are with those impacted by this tragedy. The United States stands ready to provide any necessary assistance."

Transport Ministry officials said the airport control tower had issued a bird strike warning to the plane shortly before it intended to land and had given its pilot permission to land in a different area.

The plane was destroyed with the tail assembly being the only recognizable part among the wreckage, the fire chief told a televised briefing.

Fox News' Sarah Rumpf-Whitten, Chris Pandolfo and The Associated Press contributed to this report.