THE final report into the mysterious disappearance of flight MH370 is being released by the Malaysian government.

The report to be released on Monday, is expected to contain the final details of the investigation into the Malaysia Airlines plane that vanished while carrying 239 people, including six Australians, en route from Kuala Lumpur to Beijing in March 2014.

Malaysia’s Transport Minister Anthony Loke has promised that relatives of those who were on board the plane would be briefed about the report before it is publicly released and published.

Mr Loke vowed earlier this month that “every word recorded by the investigation team will be tabled in this report”.

The four-year search for MH370 ended in May after the US-based technology firm Ocean Infinity failed to locate the plane while canvassing 125,000sq/km of the Indian Ocean.

Malaysia had signed a “no find, no fee” deal with Ocean Infinity to resume the hunt for the plane after the official search led by Australia, Malaysia and China was called off in early 2017.

Several theories have emerged about how the plane disappeared, with some suggesting the plane was hijacked and others believing someone on board may have deliberately turned off the plane’s transponder before diverting it over the Indian Ocean.