Mexican authorities say three people are under arrest after the navy intercepted a speedboat allegedly carrying 2.9 tons of cocaine east of Mahahual, Quintana Roo.The Mexican navy released video of Tuesday’s dramatic high-speed drug bust, during which Mexican Marines were lowered from helicopter onto the speedboat.The navy said, the boat was stopped because it was being driven in an erratic manner at a high speed.Authorities say the drugs were concealed in 74 packages.The military did not reveal details about the origin of the drugs or its expected destination.  
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