The Florida Highway Patrol was investigating a crash on Wednesday evening involving an ATV.
It happened on Northwest 27th Avenue (State Road 817) in Miami Gardens.
FHP said an ATV and a bicycle collided. No other vehicles were involved.
Officers shutdown 27th Avenue southbound, just south of 167th Street, as they continued their investigation.
Miami-Dade Fire Rescue said the juvenile on the ATV was airlifted to the hospital in unknown condition. There's no word on the bicyclist's condition.
No further details have been released.
