According to police, the group member is under suspicion of assaulting another Korean girl with the last name of 'Choi, at the bar. As a friend of the group member argued with Choi on the way to the restroom, Choi issued a dirty look at the passing girls, which prompted the girls to drag her into the restroom and beat her. Choi stated to police, “Three women took me to the restroom, tied my hands behind my back, and severely punched me my face.”, “They knocked me down, kicking me and tried to shove my head into a toilet.” According to the group member, she claims, “I was there trying to stop the fight, but no one assaulted her.” The police said, “It is a true that the group member is under suspicion of assault, but since she denies this, we need more investigating to figure out the truth.”
The ex-member of Uptown debuted as a member of group in 2005 and performed with them for 2 years, and later came back as a solo singer in 2009. There weren't many girl members of the mostly male band formed of Koreans and Korean-Americans, so it probably doesn't require much head-scratching over which member it was.