Chief Keef was just cuffed by Miami Beach cops after a traffic stop that led to a drug investigation.
Law enforcement sources tell us Keef was driving a green Lamborghini when his passenger allegedly got out and started talking with the vehicle behind theirs. We're told cops saw the commotion and believed there was an exchange made, initiating a stop.
Witnesses on scene tell us officers discovered marijuana in at least one of the vehicles.
At this time, we're told Keef and 4 others have been brought in for questioning ... but he hasn't been officially booked or charged with anything.
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