Serious incident procedures have been implemented following an incident that occurred at Albert Square in Ramsey earlier this afternoon.
As a result, a red flag has been issued and all racing activity on the TT Course is currently suspended until further notice.
Organisers said: “For the safety of everyone, all roads around the TT Mountain Course remain closed until further information is provided.
“We must stress that you must not enter these closed roads – whether on foot or by vehicle – as emergency and support vehicles may be operating on the course, and there is a significant risk to your safety.
“We would also like to remind the public that while the roads remain closed, you should follow the instructions of marshals, race officials, and emergency service personnel at all times.
“The current priority for the Clerk of the Course and the wider Race Control team is working closely with the Emergency Services to support the ongoing response wherever possible.”