By George P. Hassett

A human trafficking task force busted an illegal massage parlor in Davis Square last week after a man who paid for sexual services at the parlor complained to authorities, police said.

Fu Shen Spa was raided Aug. 4 after undercover investigators reported prostitution at the second floor suite at 258 Elm St., police said.

The parlor was not licensed by the Board of Registration of Massage Therapy, police said.

When authorities entered, they allegedly found two women massaging two men. The men, who were instructed by police to put their clothes on, admitted to paying for massages, police said.

Two undercover officers identified Lian Zhao, 45, of 136 Bowery St., New York City, as the woman who had offered sexual services during their massage sessions on July 27 and Aug. 3. She was arrested and charged with sexual conduct for a fee.

Police allegedly seized $1,569 in cash, receipts, ledgers and appointment books. Much of the cash and receipts were found in the bag of the second woman, Xiao Gu, 25, of 3 Linden Place, Malden, police said.

Gu allegedly told police it was her job to give the money to the owner of Fu Shen. She was arrested and charged with keeping a house of prostitution