Tracy Morgan is in hot water with another advocacy group, reports EOnline.com. The "30 Rock" star returned to stand-up Saturday night following his apology for an anti-gay tirade on June 3, but during the routine made jokes about disabled people.

As previously reported, Morgan said, "Them young retarded males is strong. They’re strong like chimps," among other comments about disabled people.

Now the nonprofit advocacy group the Arc, which works on behalf of people with intellectual and developmental disabilities, is demanding an apology.

"Tracy Morgan should apologize immediately," the Arc’s CEO, Peter Berns, said. "This quote is far too offensive to be excused as comedy, and it is very hurtful to people with intellectual and developmental disabilities and their families."