Air traffic controllers barely managed to stop six airliners from colliding on Sunday in Russia's southern Rostov region, near the Ukrainian border, Interfax reported.
The passenger planes were all traveling at a height of 10,000 meters over the same area at about the same time, but air traffic controllers were able to divert all the flights at the last moment.
The problem apparently occurred due to flight paths having been diverted following an airliner's deadly crash in eastern Ukraine on Thursday.
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