Detectives raided a North Haven massage parlor on Tuesday as part of a prostitution investigation.

Police said detectives executed a search and seizure warrant at the Korean Massage Therapy Spa, at 565 Washington Ave., as part of a month-long investigation and seized all the furniture, equipment, electronic devices and documents in the spa.

Two women were inside the business, which was open, but have not been charged.

Police are continuing to investigate.