Popular apparel retailer Urban Outfitters came under fire on Monday for selling a sweatshirt that stirred up memories of the infamous Kent State University massacre in 1970.

The vintage red sweatshirt emblazoned with the words "Kent State University" and a university seal has dark red splotches that look a lot like blood. Urban Outfitters was slammed on social media Monday, prompting the company to remove the shirt from its website, according to CNN Money.

Critics of the sweatshirt say the dark red splotches were a reference to the 1970 shooting at Kent State by the Ohio National Guard that killed four students. Urban Outfitters has said that the splotches were an unfortunate coincidence.

"Urban Outfitters sincerely apologizes for any offense our Vintage Kent State Sweatshirt may have caused," the company said in a statement released on Twitter. "It was never our intention to allude to the tragic events that took place at Kent State in 1970 and we are extremely saddened that this item was perceived as such."

The company went on to say that the sweatshirt was part of its sun-faded vintage collection and the red splotches were simply discolorations to enhance the vintage appearance.

Kent State University issued a statement that blasted Urban Outfitters for "using our pain for their publicity and profit. The statement went on to say that the sweatshirt "is beyond poor taste and trivializes a loss of life that still hurts the Kent State community today."

The sweatshirt was listed at $129 and only one was made, according to The Washington Post. Evidently the "one-of-a-kind" shirt sold and the buyer has since listed the item for sale on eBay, with a starting bid of $550. The eBay seller has promised to donate half the selling price to The Southern Poverty Law Center.

Urban Outfitters is familiar with its clothing stirring up controversy. In the past the company has come under fire for selling shirts that say "Eat Less" and "Depression". Most recently it was bashed for selling a shirt with a small star, similar to was Jews were forced to wear during the Holocaust.