(NEWSER) – An Arizona State University fraternity that was already on probation has been suspended after a Martin Luther King Jr. Day party rife with racial stereotypes. Students wore basketball jerseys and what the Arizona Republic calls "stereotypical hip-hop clothes"; they posted on social media with hashtags like "blackoutformlk" and "ihaveadream." They drank from cups made of watermelon rinds. The ASU chapter of Tau Kappa Epsilon was on probation following an attack on a black member of a rival frat. Now, local civil-rights leaders want the chapter expelled, the Republic reports.