A British Navy survey ship arrived Sunday at the location in the Indian Ocean where a Chinese vessel detected "pulse signals" Friday and Saturday that could be from the black box of the missing Malaysia jet, a Ministry of Defense spokesperson told NBC News. The sophisticated HMS Echo is "capable of collecting an array of military hydrographic and oceanographic data," according to Britain's Ministry of Defense. The Australian Navy's Ocean Shield, which is carrying high-tech sound detectors from the U.S. Navy will also head to the location.
