text: Summarize the following article:
  
  A man in his 20s who entered a women's sleeping room naked at a jjimjilbang in Seoul has been arrested by police. The man also allegedly assaulted a jjimjilbang employee who tried to restrain him.
  According to police, the Gwanak Police Station in Seoul is investigating A, a man who entered a female sleeping room naked at a jjimjilbang in Shinlim-dong, Gwanak-gu, on suspicion of performance obscenity and injury. At the time of the incident, Mr. A was reportedly intoxicated.
  
  According to police officials, Mr. Lee entered the sauna at around 11 a.m. on March 8 while wearing a jjimjang, but suddenly took off all his clothes and left the sauna. He then went up to the second floor and entered a sleeping room for women. At the time, there were several female customers relaxing in the sleeping room.
  
  The sauna staff tried to get him to leave, but he resisted and kicked the staff member, causing him to fall down the stairs, knocking him unconscious. The male employee called 911 and received first aid.
  
  The police, who responded to the call, voluntarily accompanied Mr. A to the police station.
  
  A police official said, "There was no direct physical contact between Mr. A and the employee at the scene, so he was only charged with performing obscenity, not rape." "We plan to confirm the exact circumstances of the crime through securing closed-circuit (CC) TV and witness statements."