You're reading: BBC: 10 theories behind the missing Malaysia plane

As the search for Malaysia Airlines missing Boeing 777 moves into its 11th day, a multitude of theories about the plane's fate are circulating on forums and social media. Here, former pilots and aviation experts look at some of those theories. Malaysia's government says the plane - with 239 people on board - was intentionally diverted and could have flown on either a northern or southern arc from its last known position. The country's Department of Civil Aviation has stated that "pings" were picked up from the plane six hours after military radar last detected it over the Strait of Malacca at 02:15 on 8 March.

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