Information available to Joy News indicates a petrol tanker has overturned at the Valco Roundabout in Tema.Fuel is reportedly flowing from the tanker and people are attempting to scoop the fuel thereby endangering their lives.The police and other security agencies are requested to rush to scene to avert a possible calamity.The last time such an incident happened in the Brong Ahafo region, tens of people were burnt beyond recognition.The scene was gory and public was advised against going near such accident vehicles.