Starbucks apologized Thursday after an Oklahoma police officer was called a "pig" on his coffee order.

Kiefer Police Chief Johnny O'Mara shared a photo of the cup Thursday he says was given to one of his on-duty officers at a Starbucks location in Glenpool.

"This is what he gets for being nice," O'Mara wrote.

According to the post, the officer was picking up coffee for the department's dispatchers as a gift for Thanksgiving.

"What irks me is the absolute and total disrespect for a police officer who, instead of being home with family and enjoying a meal and a football game, is patrolling his little town," O'Mara wrote.

Starbucks responded to the post in a comment with an apology -- saying an internal investigation is underway.

Starbucks called KOKI-TV Friday to give the following statement: