Chinese sattelite had released images believe to be of MH370. It was captured on 9th of March 2014 and only released on Wednesday.

The outcome of the Chinese Satellite image
Datuk Azharuddin Abdul Rahman says planes searched the location Thursday. “There is nothing. We went there, there is nothing,” he told reporters in Kuala Lumpur.
A search by two Vietnamese aircraft responding to information provided by a Chinese satellite has also failed to locate wreckage, a Reuters journalist on board a search plane said.
Aircraft repeatedly circled the area over the South China Sea but were unable to detect any objects, said the journalist, who flew aboard a Antonov 26 cargo plane for three hours.
Vietnamese and Malaysian planes were scanning waters where a Chinese government agency website said a satellite had photographed three “suspicious floating objects” on Sunday. – SOURCE
Another lead is an email from an oil rig worker who claim that he saw the burning (plane).
TORONTO – An oil rig worker claimed he saw the Malaysia Airlines Flight MH370 crash while working off the south coast of Vietnam, according to a report.
Bob Woodruff, an ABC News correspondent, obtained a copy of an email the man said he sent to his employer stating he witnessed the crash.
“I believe I saw the Malaysia Airlines plane come down. The timing is right,” the man said in the email. “I tried to contact the Malaysian and Vietnam officials several days ago. But I don’t know if the message has been received.”
According to Woodruff, Vietnam officials confirmed they received the email. – SOURCE
Credit: click image to go to source
Below is The Guardian image showing the search area