Photos of a fan seeming to go onto the course after roads had closed have attracted hundreds of comments.
A TT visitor posted the snaps to one of the largest TT fan groups, with 72,000 members.
On them, a man can be seen going past the barriers at the end of Devonshire Road near Quarterbridge in Douglas.
He's been roundly condemned by fans.
Around 91 new urban homes being created within a year, says minister
Around 91 new homes are being created in urban areas in a year, according to the Cabinet Office minister.
Sex offender anonymity laws to come under spotlight in Tynwald next week
Laws giving alleged sex offenders anonymity will be under the spotlight in Tynwald next week.
Number of clinical negligence claims faced by Manx Care disclosed
Health Minister Claire Christian says Manx Care has faced 25 clinical negligence claims since it was set up five years ago.
How much does failed TT merch company still owe government?
How much does a TT merchandise company still owe the government after it collapsed?
Talk next week asks how stargazing could bring business to Manx farms
Could the Island's clear skies and low light pollution bring more business to farms?
'Wardrobe Refresh' used clothes sale tomorrow will aid charity
Fancy updating your wardrobe and helping out a good cause?
Questions over final cost of Liverpool ferry terminal in Tynwald next week
Questions about the government's new ferry terminal in Liverpool will be raised in Tynwald next week.
Fun day to mark reopening of family library today
A huge fun day will mark the reopening of the Island's family library in Douglas today.
