Iran Revolutionary navy seized MV Maersk ship with 34 sailors aboard . Iranian navy harassed another Maersk ship days before , officials said . Revelations have expressed concerns about the security of shipping lanes . sailors from Iran claimed they seized Maersk Tigris under a legal order amid a long running legal dispute with the shipping company .
Iran Revolutionary Guards seized MV Maersk Tigris with 34 sailors aboard . Iranian navy harassed another Maersk ship days before , Pentagon said . Revelations have raised concerns about the security of shipping lanes . Officials from Iran claimed they seized Maersk Tigris under a legal order following a long running legal dispute with the shipping company .