A Gurnee woman was arrested Friday on a warrant following an earlier prostitution investigation at the Dragon Spa, 402 Peterson Road in Libertyville that she owns, Libertyville police announced. Xiaohong Wu, 41, of the 100 block of Stockton Drive, was charged with prostitution. An employee was arrested and charged with prostitution Jan. 7. Wu was released after posting $2,500 bond. She is scheduled to appear in court Feb. 15.Copyright © 2014 Paddock Publications, Inc. All rights reserved.