China's foreign ministry has said its aircraft are not conducting searches over land for a missing Malaysia Airlines aircraft but it is expanding searches at sea.
Earlier in the day the chief of China's civil aviation authority said that searches would be broadened to include land areas.
A mother has described her frustration as she waits for answers on the fate of her missing son who is on board the missing Malaysia plane.
Malaysia's military believes a jetliner missing for almost four days turned and flew hundreds of kilometres to the west.
The wife of a passenger travelling on the missing Malaysia Airlines flight has spoken of her struggle to cope as she waits for news.