MH370 search: Fifth underwater signal detected

PETALING JAYA: An Australian military aircraft detected a fifth underwater signal, possibly from MH370’s black box, as the search area for the missing Malaysia Airlines aircraft was narrowed further to a 57,923sq km patch of the Indian Ocean.

Angus Houston, who heads the agency coordinating the search in the area, said the AP-3C Orion aircraft detected the possible signal in the vicinity of the Australian ship Ocean Shield.