District spokeswoman Jennifer Caracciolo confirmed Monday that the decision to fire Allen was made after officials learned of the Facebook postings.
In the posting, Allen refers to the first lady as a gorilla.
“How is she going to function in the real world, by not having all of her luxurious vacations paid for anymore?” she also said.
Allen ended the post by saying Michelle Obama is a disgrace to America.
Allen’s Facebook page was no longer visible Monday.