Tina Fey 'Honestly Can't Believe' Tracy Morgan Survived His Horrific Car Accident

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The 'SNL' alum opened up about her '30 Rock' co-star's 2014 crash and says it's 'incredible' that he lived.

Tina Fey is opening up about former co-star Tracy Morgan's life-threatening car crash, and the 30 Rock star said she was shocked Morgan lived through the horrific accident.

"I honestly can't believe that he made it," Fey said in an interview with Howard Stern on Monday. "He was so frail before [the accident], he was so diabetic. And now, for him to have survived that, it's incredible."

WATCH: Tracy Morgan Opens Up About Returning to Work After His Car Crash: 'I See Life Differently'

Fey and Morgan have spent years working alongside each other, first on Saturday Night Live when they were cast members together for three years, and then on Fey's NBC sitcom 30 Rock, where they acted side by side for seven seasons.

According to the 45-year-old actress, she and fellow SNL alum Amy Poehler, who also worked alongside Morgan for a number of years on the sketch comedy series, were on the set of their upcoming comedy Sisters when they heard the news of Morgan's crash.

WATCH: Tracy Morgan's Recovery Timeline & How His Toddler Helped Him Walk Again

"He was in really bad shape," Fey said. "We were just going through [his publicist] to see how he was doing, because he was in a coma."

The 47-year-old Morgan, who was left in a coma and with severe brain trauma after his limo bus was struck by a semi-trailer truck in June 2014, recently showed how far he's recovered since his accident when he hosted SNL in October for one of the season's best shows thus far.

"He did great!" Fey gushed over Morgan's turn as host.

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Fey and Poehler's raunchy comedy Sisters hits theaters Dec. 18.

For more on Morgan's return to the SNL stage after recovering from his devastating crash, check out the video below.