46 crew still missing after South Korean navy ship sunk03/29/2010March 29, 2010Relatives of missing sailors accost a military officer for information.Copy linkPrefer DW on GoogleAdvertisementOld North Korean sea mines might have caused the explosion on the 1,200-ton Cheonan, Seoul said on Monday. The missing sailors are thought to be at the back of the ship, which has not yet been found.Image: AP