Fierce flames engulfed a road after an oil tanker exploded along a highway in China.Footage shows the massive blaze ripping through the Quanzhou Expressway in Fujian province on January 2. Tongues of flame ravaged the vehicle and set alight a trail of lubricant that spilled from its tank.The fire also spread to nearby vehicles and some houses, but was extinguished at 1:15 am local time on January 3.No casualties were reported.The cause of the explosion is still under investigation.