China says that one of its satellites has detected three large "floating objects" in a region of the sea where it suspects the missing Malaysia Airlines flight MH370 had an accident.

China´s state science and technology administration said Wednesday that a Chinese satellite had seen the objects in a "suspected crash sea area" on the morning of March 9, adding that the images were being analysed.

The suspected objects were found at 105.63 degrees longitude East and 6.7 degrees latitude North, the administration said on its website.

It added that the objects were spread across an area with a radius of 20 kilometres (12 miles), in sizes that appeared to be 13 x 18 metres, 14 x 19 metres and 24 x 22 metres.