A Chinese satellite has spotted another floating object, close to the area where ships and planes are looking for wreckage from Malaysia's missing plane.

It measures about 22.5 metres by 13 metres, according to China's government, which says the image was taken on Tuesday.

The location is 120 kilometres away from where a satellite earlier photographed other debris - in the Indian Ocean off Australia's south-west coast.

Al Jazeera's Andrew Thomas reports from Perth.