One of the two passengers who had boarded the missing MH370 aircraft using stolen passports have been identified, said police.

Inspector General of Police Tan Sri Khalid Abu Bakar said the identity of the man was discovered after police had studied the close-circuit television camera from the Kuala Lumpur International Airport (KLIA).

“I can confirm that the man is not a Malaysian but we cannot reveal his nationality,” he said at the Kajang district police headquarters.

He also confirmed that the man is also not from Xinjiang, China.

“Until now, we do not have any proof that a militant group from China is responsible for the missing aircraft,” he added.

When asked if there were any immigration records on the two men, Khalid said it was still being investigated.

“We cannot link the missing aircraft with terrorism activities yet but let us investigate all possibilities,” he said.

Two men, Austrian Kristian Kozel and Luigi Maraldi of Italy -- were listed on the passenger manifest of the flight MH370, but neither man boarded the plane, officials said.

Both had their passports stolen in Thailand over the past two years.

MH370 had 239 people on board from 14 nationalities. They included at least 152 Chinese, 38 Malaysians, seven Indonesians, six Australians, five Indians, four French and three Americans. These included two infants.

There were also five passengers who had purchased tickets bound for Beijing, but did not board. All baggages were removed.

The MAS flight went missing at 2.40am on a Kuala Lumpur to Beijing flight two hours after it took off at 12.41am on Saturday. It was scheduled to land in Beijing at 6.30 am. on Saturday.