Some of the world's most advanced military technology is on display in Asian waters this week in the search for the missing Malaysian passenger jet, but the plane's whereabouts are still a mystery six days after it disappeared.
Chinese media are describing Bejing's deployment of four naval vessels, four civilian search ships and multiple aircraft as the biggest Chinese rescue effort ever assembled. State-run television said two ships were using underwater sonar and robots to try to find the missing Boeing 777 with 239 people aboard.
Chinese helicopter teams say they are carrying out airborne searches in a methodical fashion. Yet one commander, Zhou Zun, said that spotting someone still alive in the water would be difficult.
"At a vertical height of two or three hundred meters above sea level, you see cars around the size of a match box," said Zhou. "So in case of a human being floating in the sea with only head out, the target would be tiny and really difficult for us to discern."
Satellite images a mistake
And China was forced to admit that the release of satellite images purporting to show possible debris from the Boeing 777 jet was a mistake. Malaysia said its searchers found nothing when they went looking for the supposed large-sized pieces of the aircraft.
US dispatches destroyers
The United States has dispatched two destroyers to search in the Gulf of Thailand, the Strait of Malacca and other waters between Thailand, Cambodia and Vietnam. The American military said it using Seahawk helicopters that are equipped with onboard sensors that can detect small objects in the water and infrared cameras for night-time search missions.
China, the U.S. and Malaysia are among 12 countries that have joined the search for the missing jet, a mystery that has baffled aviation experts and left them speculating as to what might have happened to Malaysia Airlines Flight 370.
The Philippines, Vietnam, Japan, Indonesia, Singapore, Brunei, Thailand, Australia and India have all deployed ships and aircraft in the so far futile search.