THIRUVANANTHAPURAM: A 18-year-old woman went missing from her residence since Saturday night under mysterious circumstances. The Poonthura police registered a case in connection with the incident. According to the police, the girl identified as Thasni, daughter of Nasser, went missing from her rented residence at Kamaleshwaram around 8.30 pm on Saturday. A probe has been initiated and information has been passed to all police stations to trace her.