"The news that I just received is that the Chinese ambassador received satellite image of floating object in the southern corridor and they will be sending ships to verify," Defence and Transport minister Hishammuddin Hussein said.
"Beijing is expected to make an announcement in a few hours," said Hishammuddin, who got the news while he was addressing his daily briefing.
China is sending two ships to the area to examine the floating object, which according to the satellite image is 22 metres long and 30 metres wide, he said, quoting Chinese government officials.
At least six search flights were involved in the search operations, including two private jets. Two Australian planes returned without spotting anything.
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Search teams involving 26 countries are still trying to locate Malaysia Airlines Flight MH370, which went missing an hour after taking off from Kuala Lumpur for Beijing on March 8 with 239 people on board, including five Indians and one Indian-Canadian.
The mystery of the missing plane continued to baffle aviation and security authorities who have so far not succeeded in tracking the aircraft despite deploying hi-tech radar and other gadgets.
He also thanked all the coutures involved in the search for the Boeing 777-200 in the Indian Ocean, saying that vessels "are sailing through a cyclone" to join the operation.
He said the transcript of the conversation between the pilots and the Malaysian air traffic controllers was released yesterday.
"Unfortunately, there doesn't appear to be anything unusual in the exchanges. Some have suggested that there is something unusual in the pilot repeating his altitude," he said.