Tracy Morgan Leaves Utah With O₂ Carry-On

1/24/2012 2:00 AM PST

Tracy Morgan Leaves Utah With Oxygen Carry-On

Tracy Morgan left Utah Monday ... with a breathing tube secured in his nose that was attached to an oxygen tank.

The photog asked Tracy just before he boarded the plane if diabetes or alcohol played a part in his 911 emergency at Sundance, when he fell into unconsciousness. 

Tracy gave 2 answers:

Serious -- the altitude made him sick.
Funny -- "Superman ran into a little Kryptonite today."