The freighter Ryu-Jin was reported lost off Taitung, Taiwan.  The vessel had become disabled after an engine failure when rough seas caused part of the hull to split open.  The vessel suffered severe ingress and listed over.   The vessel sent out distress call which was received by authorities.  A helicopter was dispatched to the scene and was able to rescue seven crew from the Ryu-Jin.  One report states the master of the Ryu-Jin was reported to have been lost overboard.   No detailed background information on the Ryu-Jin has been located.  The vessel is flagged as Cambodian, but no other details are available.