 There were six fatalities among competitors in the 1970 Isle of Man TT, making it the deadliest year in the history of the event.On 30 May 2018 an experienced TT rider, Steve Mercer, was seriously injured during a head-on collision with an official Course Car at Ballacrye.The car, being driven at high speed, was conveying police officers to officiate at the scene of a fatality involving Dan Kneen.