Tracy Morgan of '30 Rock' out of Utah hospital

By the Associated Press | January 23, 2012 | 5:45 PM EST

FILE - In this June 21, 2011 file photo, comedian and actor Tracy Morgan arrives at a news conference with Kevin Rogers, right, in Nashville, Tenn. The publicist for comedian and "30 Rock" cast member Tracy Morgan says the actor wasn't drinking when he collapsed Sunday, Jan. 22, 2012, at the Sundance Film Festival in Park City, Utah. (AP Photo/Mark Humphrey, file)

PARK CITY, Utah (AP) — Comedian and "30 Rock" cast member Tracy Morgan has been released from a hospital after collapsing during the Sundance Film Festival, and he says he'll be back at work Tuesday.

Morgan's publicist, Lewis Kay, confirmed Monday that the actor left the Park City Medical Center after he suffered from exhaustion and altitude Sunday night in Park City, where the elevation is 7,000 feet.

Morgan posted a comment Monday on Twitter that the high altitude "shook up this kid from Brooklyn."

"Superman ran into a little kryptonite," he quipped.

He also said on Twitter that he would be back to work Tuesday on "30 Rock."

Ron Nyswaner, co-director of the Sundance film "Predisposed," in which the actor stars, said Morgan's collapse resulted from "altitude sickness combined with his diabetes. And he hadn't eaten. He hadn't had enough water."

Kay said hospital officials report no drugs or alcohol were found in Morgan's system.

Morgan had been attending an event for the Creative Coalition at which he had just received an award.

In "Predisposed," which stars Jesse Eisenberg and Melissa Leo, Morgan plays a drug dealer caught up in the push-and-pull between a piano prodigy and his troubled mother.