Mumbai: The Mahim police have registered a case under the Protection of Children from Sexual Offences (POCSO) Act after a 13-year-old boy alleged that a 16-year-old teenager forcibly took him to a secluded location in Mahim, assaulted him sexually and threatened him with consequences if he disclosed the incident.According to the complaint, the incident took place on June 18 at around 7 am near a school in Mahim West. The complainant alleged that the 16-year-old accused (also a minor) chased him, forcibly made him sit on his motorcycle and took him to a location where goats were kept.The boy further alleged that the accused and his unidentified friend tied his hands and gagged him. After the friend left, the accused allegedly sexually assaulted the minor and attempted to force further sexual acts. The complainant resisted and raised an alarm, following which he was allegedly assaulted.The boy also told police that the accused threatened to edit his photographs and circulate objectionable images on social media. The complainant said he was threatened with being defamed and blamed if he disclosed the incident.Mahim police have registered an FIR against the two boys under relevant provisions of the BNS and Sections 4, 8 and 12 of the POCSO Act. Both the accused are being treated as children in conflict with law.The minor was examined at Bhabha Hospital. Police said the delay in reporting the incident was explained by the complainant. An investigation is underway to identify the second accused and establish the sequence of events. Police are also examining the alleged social media threats and other evidence in the case.