MH370: China finds no terror evidence against Chinese on board

China's ambassador to Malaysia Huang Huikang also said China had begun searching for the aircraft on its own territory amid a huge international search operation covering vast areas north and south of the plane's last-known position.

Huang said background checks on all passengers from the Chinese mainland on board missing flight MH370 did not find any evidence that they were linked to a hijacking or terrorist attack on the jet, the official Xinhua news agency reported.

After taking off from Kuala Lumpur heading to Beijing, the jet disappeared on March 8 with 239 people on board.

Twenty-six countries are now helping to hunt for the plane after satellite and military radar data projected two huge corridors through which the plane might have flown.

The northern route stretches in an arc over south and central Asia, passing across far western China while the southern corridor swoops deep into the southern Indian Ocean west of Australia.