The 107 meter long, 7092 dwt freighter Fu Heng Star caught fire in the superstructure while sailing in the Hainan Strait, South China Sea.  The crew was able to extinguish the blaze, but the fire damage disabled the vessel.  The crew requested assistance and a salvage tug was dispatched to the scene.   The tug took the freighter under tow and proceeded to Haikou.   The Fu Heng Star was en route to Xinhui from Vietnam with 6443 tons of coal.  No reports of injuries or pollution being released.