Missing Malaysian airlines flight crash
A helicopter takes off to search the waters suspected to be the site of the missing Beijing-bound Malaysia Airlines flight MH370 Reuters

The missing Malaysia Airlines plane MH370 was reportedly spotted off the south-eastern coast of Vietnam by an oil rig worker.

According to his claims, he witnessed the crash of the plane, reports Mashable.

As per the report, in an email sent to his employer, which was acquired, confirmed, and then shared by the ABC journalist Bob Woodruff, the man says: "I believe I saw the Malaysian Airlines plane come down. The timing is right."

According to his description of what he saw, the plane seemed to be burning, in one piece, at high altitude while flying perpendicular to the standard plane routes that cross over the area. "From when I first saw the burning (plane) until the flames went out (still at high altitude) was 10-15 seconds. There was no lateral movement, so it was either coming toward our location, stationary, or going away from our location," he writes. The Vietnamese officials confirmed that they received the letter, but reportedly found nothing in the water.

On Wednesday, authorities expanded the search area for the missing plane to 27,000 square miles after reports that the flight MH370, before disappearing from the radar, may have changed directions.

Malaysia Airlines Flight MH370 Crash Map
Malaysia Airlines Flight MH370 Crash Map
Timeline

Waters between Malaysia and Vietnam were initially the prime order for search teams to look for any clues as to what may have happened to the missing aircraft that was carrying 239 people.

However, a source inside the Malaysian military said Tuesday that the plane switched directions and headed west.

FLIGHT MH370 FACTBOX

Flight MH370 took off from Kuala Lumpur International Airport en route to Beijing at 00:41 on March 8, Saturday 8 (16:41 GMT Friday).

About 50 minutes later, the aircraft lost contact with air traffic control.

No distress call was made.

On board, there were 12 Malaysian crew members and 227 passengers from 14 countries. That included 153 Chinese and 38 Malaysians.

Two Iranian male passengers, Pouria Nour Mohammad Mahread and Delavar Syed Mohammad Reza, were travelling on fake passports. Neither had any apparent links to terrorist groups.

No debris of the plane has been found in the international search.

At least 10 countries, including China, the US and Singapore, were using a total of 42 ships and 39 aircraft to search for the missing plane in the South China Sea, the Malacca Strait and the Andaman Sea.