A driver was forced to pull over as heavy fog shrouded a road in Thailand.Footage shows thick mist covering the Phu Thap Boek mountain road in Loei province on July 30.With visibility severely reduced, the driver said he decided to stop on the roadside and turn on his lights while waiting for the fog to clear.He said: 'It was very dangerous. I couldn't see more than 5 metres in front of me. I was scared of crashing or falling down a cliff so I just parked my car and switched on the fog lights.'