As the TT festival draws to a close, police in the Isle of Man are criticising a minority of motorcyclists for riding too fast, too close to the bike in front.
Traffic officers say they are very concerned about what's been a common factor in a series of road accidents this week.
Chief Inspector Peter Young says the speed and distance some bikers are riding the mountain course is 'extremely dangerous'.
He is appealing to riders to stay safe and ensure there are no more serious accidents as they put in their final laps before returning home:
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