Dispatch received a call from Hayward PD regarding reports of shots fired near the Hayward BART Station. At the time of the report, three BART officers were in the bus zone and they did not hear any shots, but they did see two juveniles run into the station. Trains were held out while they contacted the two on the platform. The officers did not locate a weapon on the juveniles, but a .22 caliber revolver was located in a bag on the platform. Since a crime/shooting was never substantiated and the juveniles were not seen in possession of the gun, they were identified and released to their parents. The gun was kept for safe keeping/evidence and station video will be requested. TSOC was notified of the firearm recovery TSA-08-024921-16.