An Amazon employee says she turned down a last-minute shift Friday at the Illinois warehouse where a tornado ended up demolishing the building that day, killing six coworkers.

Emily Epperson told “Fox & Friends” on Monday that she narrowly avoided being in the doomed warehouse in Edwardsville because of an ankle injury.

“I definitely could have [been there],” Epperson said.

Her best friend, 26-year-old Austin McEwen, was among the six employees who died when the tornado ripped the roof off the building, causing it to collapse.

“It’s just very bizarre and devastating, obviously, to think that my friend didn’t make it out,” Epperson said.

She said McEwen returned to the warehouse after finishing his deliveries for the day when employees were told to seek shelter from the storm.

“He just wanted to go home. They could not leave until they were sure that the building was safe enough to exit,” Epperson said.

She said the warehouse projected a false sense of security because of its thick walls.

“I did get the sense that I was safe there,” the employee said.

Her comments came as the federal Occupational Safety and Health Administration announced it has opened an investigation into the Amazon warehouse collapse.

OSHA has “had compliance officers at the complex since Saturday, December 11 to provide assistance,” according to a spokesman.

“OSHA has six months to complete its investigation, issue citations and propose monetary penalties if violations of workplace safety and or health regulations are found. No further information will be available until OSHA has completed their investigation.”