EL PASO — The comedian, Gallagher, has canceled his Thursday night show at Speaking Rock Casino.

On Wednesday night, Speaking Rock posted a message on their Facebook page to notify fans, "Due to medical reasons Gallagher show for tomorrow is canceled. We will keep you posted when we reschedule the Gallagher show."

Several media outlets are reporting that the comedian collapsed of a heart attack during a performance on Sunday night.

He was reportedly taken to the hospital and his representative said they do not know when he will be released. 

The dates for rescheduled shows have not been released.

Photo Courtesy: Gallaghersmash.com