Pizza Delivery Rider attack by thugs in Gosport underpass

The Incident happened inThe Gillies (subway) Fareham. Sunday 6th August 2017 around 8pm. The 17-year was carrying out his job, delivering pizza to the people of Fareham on one of Dominoes new ELECTRIC bikes. Since riding it the rider has had pizza stolen from him and then in Sunday, he was attacked as he cycled through the subway, by a group of four grown men, accusing him of riding a moped on a path. Officers from Hampshire police have reviewed cctv but it only captures the entrances and not in the subway so can not see the actual attack. The images of the men are not very clear. If anybody was in the vicinity at this time and can help in any way, please contact the police on 101.