Police are currently carrying out an investigation into a serious collision at the 33rd Milestone.
As a result, this will affect the schedule for the first day of racing.
Organisers say everything has been pushed back by one hour, with roads now expected to close at 11am.
Today's races include the first Supersport and Sidecar TT Races, which will now get underway an hour later than expected.
Officers are carrying out an investigation into a serious RTC at the 33rd, there will be a delay to the road closure on the lower parts of the TT course. The roads are now scheduled to close at 11am to allow for the investigation. #TT2023 #knowyourlimits #keepingpeoplesafe
— TweetbeatIOM #RespectIOM (@TweetbeatIOM) June 3, 2023
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