Ahmedabad: A 12-year-old girl from a locality in Vastrapur was allegedly molested by a security guard on Tuesday, said a police officer.According to a complaint filed with Vastrapur police on Tuesday, the accused worked at the residential society where the victim lived for around five years. The accused allegedly called the girl and molested her. The girl told her mother about the incident, who then informed the authorities.Her mother approached Vastrapur police and filed a complaint of molestation under the Bharatiya Nyaya Sanhita, along with charges under the Protection of Children from Sexual Offences (POCSO) Act against the accused.Vastrapur inspector L L Chavda said that the 55-year-old accused has been arrested in the case.