The flight data and voice recorders showed 'everything was normal' until both failed at 24 minutes after takeoff, pointing to 'a very sudden explosive decompression' one source said.
    
The data 'strongly favours' the theory a bomb on board had brought down the plane, he added. Another source said the plane had gone down suddenly and violently. Meanwhile, British airlines were scrambling to evacuate passengers in Sharm el-Sheikh after cancelling flights to the Red Sea resort from which the doomed Airbus had taken off Saturday.
    
One of the black boxes recovered from the crash site showed that the plane suffered ' a violent, sudden' end, a source close to the case in Paris told sources. The flight data recorder showed that everything was normal during the flight, absolutely normal, and suddenly there was nothing.
    
President Vladimir Putin ordered flights halted on the recommendation from his security chief, the Kremlin said, although Moscow had previously downplayed reports that a bomb caused the crash.
    
At an emergency meeting, the head of Russia's FSB security service, Alexander Bortnikov, said it would be prudent to halt flights for now. "Until we have determined the true reasons for what happened, I consider it expedient to stop flights by Russian aviation to Egypt," he said.

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