Search planes, ships divert to Indian Ocean area where 'pings' detected

A man places a candle on top of a white board set up to place messages for passengers onboard the missing Malaysia Airlines Flight MH370 during a candlelight vigil in Kuala Lumpur April 6, 2014. REUTERS/Samsul Said

SYDNEY/PERTH, Australia (Reuters) - Some planes and ships searching for a missing Malaysia Airlines jetliner in the Indian Ocean moved on Monday toward waters where a Chinese vessel had picked up "ping" signals at the weekend, raising hopes of finding the airliner's black-box recorders.

The black boxes, thought be to lying on the ocean floor, are equipped with locator beacons that send pings on the same frequency as those detected by the Chinese naval ship, but the beacons' batteries are thought to be running out by now, a month after Flight MH370 disappeared.