Police are appealing for witnesses following a serious assault out Esso Garage, Milton Rd in Portsmouth The fight between two large groups of men happened at around 1.30am in the early hours of Saturday morning (1st October). A 28 year old man has been taken to QA Hospital in Cosham for a treatment to serious injury to his head. Where you in the area or did you see the groups prior to the fight. Police are keen to talk to anyone who may have been using the filling station. If you can help or have any information please call Police on 101.