Malaysian Airlines: Vietnam says it may have found missing jet's door

The final minutes before the disappearance of Malaysia Airlines Flight MH370 still remain a mystery

A Vietnamese aircraft spotted what they suspected was one of the doors of the missing Boeing 777, while troubling questions emerged about how two passengers managed to board the ill-fated aircraft using stolen passports.

Interpol confirmed it knew about the stolen passports but said no authorities checked its vast databases on stolen documents before the Boeing jetliner departed Saturday en route from Kuala Lumpur to Beijing.

Warning "only a handful of countries" routinely make such checks, Interpol secretary general Ronald Noble chided authorities for "waiting for a tragedy to put prudent security measures in place at borders and boarding gates."

More than two days after Malaysia Airlines Flight MH370 went missing, the final minutes before its disappearance remained a mystery. The plane lost contact with ground controllers somewhere between Malaysia and Vietnam.

However, searchers in a low-flying plane spotted an object that appeared to be one of the plane's doors, the state-run Thanh Nien newspaper said, citing the deputy chief of staff of Vietnam's army, Lt Gen Vo Van Tuan.

Two ships from the maritime police were headed to the site in waters about 90 kilometres south of Tho Chu island, in the same area where oil slicks were spotted Saturday.

"From this object, hopefully (we) will find the missing plane," Tuan said.

The missing jetliner apparently fell from the sky at cruising altitude in fine weather, and the pilots were either unable or had no time to send a distress signal - unusual circumstances under which a modern jetliner operated by a professional airline would crash.

Authorities were checking on the identities of the two passengers who boarded the plane with stolen passports. On Saturday, the foreign ministries in Italy and Austria said the names of two citizens listed on the flight's manifest matched the names on two passports reported stolen in Thailand.

"I can confirm that we have the visuals of these two people on CCTV," Malaysian Transport Minister Hishammuddin Hussein said at a news conference late yesterday, adding that the footage was being examined. "We have intelligence agencies, both local and international, on board."

The thefts of the two passports one belonging to Austrian Christian Kozel and the other to Luigi Maraldi of Italy were entered into Interpol's database after they were stolen in Thailand in 2012 and last year, the police body said. But no authorities in Malaysia or elsewhere checked the passports against the database of 40 million stolen or lost travel documents before the Malaysian Airlines plane took off.

In a forceful statement, the Interpol chief, who has called passport fraud one of the world's greatest threats, said he hoped "that governments and airlines worldwide will learn from the tragedy.