South San Francisco Police received a report of a juvenile in possession of a gun on the platform at the station. The suspect was described as a black male wearing a maroon jacket and black pants. Trains were delayed for 12 minutes while officers searched a train and detained a person matching the description given as well as recovering an Air soft handgun under the seat of the same train car the suspect was detained. After a thorough investigation, there were no victims and no witnesses came forward to identify the subject. The juvenile subject was reprimanded for possession of a replica handgun and released to a relative. TSOC notified.