Search for missing cargo ship ' s crew members in S . Atlantic continues SEOUL , April 5 ( Yonhap ) -- The Brazilian Air Force has mobilized an aircraft to search for a missing South Korean cargo ship with 22 crew members that apparently sank in the South Atlantic last week , but the operation has yet to make any headway , a government official said Wednesday . On Tuesday , a C - 130 aircraft from the Brazilian Air Force was sent to where the ship , the Stellar Daisy , was believed to have sunk , for the third search and rescue operation in a row . It searched a 1 , 138 - square - meter area but found no clues to the location of the ship with its operation hampered by low visibility due to rainy and cloudy weather , the official said . The aircraft ' s search will resume the next day , while four merchant ships are helping search for the missing ship and crew members . Asked by the South Korean government through the Uruguay - based rescue coordination center , Brazil , Argentina and Uruguay will each send a warship to the scene starting on Thursday through Sunday , with a Brazilian warship expected to arrive on Thursday afternoon . The search began Saturday , one day after the ship ' s crew sent a text to Polaris Shipping , their South Korean employer , saying their ship was taking on water . The Marshall Islands - flagged ship , carrying eight South Korean and 16 Filipino sailors , was sailing off Uruguay when it made the distress call , according to South Korea ' s foreign ministry . Also on Saturday , rescuers found the ship ' s two lifeboats and three rafts near the scene and picked up two Filipino sailors riding a raft , but failed to find the other missing sailors . The 266 , 000 - ton Stella Daisy , loaded with 260 , 000 tons of ore , departed from a port in Brazil on March 26 for China . The very large ore carrier is believed to have sunk on Friday after filling with water . This image , taken from Marine Traffic , a private website that tracks the movements of ships , on April 1 , 2017 , shows the Stellar Daisy , a South Korean cargo ship that likely sank in the South Atlantic on March 31 , 2017 . ( Yonhap ) namsh @ yna . co . kr ( END )