Malaysian official raises the possibility of more underwater exploration ##s . And as the underwater focus continues , officials faced other setbacks . Underwater probe is out for fifth trip , no ' area of interest ' yet . Bluefin-21 has covered 100 square kilometers in four trips . A preliminary analysis of an oil sample shows that it is not aircraft fuel oil .
Malaysian official raises the possibility of more underwater exploration ##s . Underwater probe is out for fifth trip , no ' area of interest ' yet . Bluefin-21 has covered 100 square kilometers in four trips . A preliminary analysis of an oil sample shows that it is not aircraft fuel oil .