Four years ago today MH370 disappeared from the radar and took with it 239 passengers en route from Kuala Lumpur to Beijing.
There are still no answers as to what happened to the Malaysian Airways flight that vanished over the Indian Ocean.
Some conspiracy theorists believe they have solved the mystery however, and point the finger firmly at North Korea.
The Kims have previously hijacked airliners and kidnapped their passengers – so the ruthless regime has form for snatching planes.
With no firm answers over MH370, could North Korea really be behind one of the mysteries of the 21st century?
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“Previously they’ve used kidnapped civilians as bargaining tools.”
Theories circulated by conspiracy fans suggest MH370 had enough fuel to fly the near 3,000 miles from its last known location to Pyongyang.
Images from flight trackers shared on Reddit appear to show the doomed plane turning slightlyeast towards North Korea.
And this course correction was just moments before the aircraft disappeared from the radar.
North Korea has a reputation for kidnapping and snatches, but none more infamous than Korean Air Lines YS-11.
Secret agent Cho Ch’ang-hǔi seized the South Korean domestic flight on December 11, 1969, and took the plane back to Wonsan, North Korea.
Passengers were then subjected to brainwash attempts before 39 of the 51 abductees were eventually released.
Many of those left in North Korea have not been seen since.
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One aviation worker claimed North Korean officials are in the market for a “really, really huge plane”.
Anonymously, he claimed Pyongyang was eyeing the design of the Boeing 777.
Four years later however, North Korea has not shown any major developments in its airliner technology – still using old jets purchased from Russia.
Reddit user Nickryane also shared the North Korea theory in a thread on the social media site shortly after the disappearance 2014.
He wrote: “North Korea has supposedly friendly relations with Malaysia including relaxed visa regulations.
“This might make it easier for North Koreans to freely plan and execute an operation from Malaysia.
“Previously they’ve used kidnapped civilians as bargaining tools.
“You could even feasibly imagine them putting a nuclear weapon on the plane and sending it on a suicide mission to another country.”
North Korea has also exploited its relations with Malaysia in recent years – allegedly carrying out the murder of Kim’s brother in the same airport from which MH370 departed.
Kim Yong-nam was walking through Kuala Lumpur International Airport when he was doused with the nerve agent VX.
He collapsed and died in a suspected assassination masterminded by his little brother – with people still on trial for the crime in Malaysia.
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Kim’s alleged plane snatch does not explain why debris belonging to the plane was discovered floating on the ocean surface.
Mystery still remains as 46,000 square miles of sea floor has been scanned for MH370.
Searches remain ongoing for the plane, but these latest efforts are set to end in June.
Conspiracy theorists seize on the lack of pieces recovered of the plane to suggest foul play – with other potential hijackers identified as terrorists, the US military and suicidal crew members.
Even psychics have weighed in on MH370 – with one claiming her “spirit guide” revealed the plane was blown up by terrorists.