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.
Nominations open for 2027 King’s Award for Voluntary Service
Nominations for the 2027 King's Award for Voluntary Service are now open.
Pre-election meeting in Arbory tonight
A pre-election meeting for voters in the south of the Island will take place tonight.
Chamber urges Islanders to choose candidates who can lead
The Isle of Man Chamber of Commerce is urging voters to choose General Election candidates who can govern in the interests of the whole Island.
Zero tolerance warning issued to abusive bus passengers
Bus Vannin is reminding passengers to respect drivers and their fellow passengers.
Middle candidates face voters tonight
A constituency meeting for voters in Middle will take place tonight.
Hospice calls on Islanders to Sparkle for Christmas
Hospice Isle of Man is asking Islanders to donate pre-loved partywear for a new sustainable fashion event.
Final cruise ship visit to the Island today
A cruise ship is making her sixth and final visit of the season this week.
Isle of Man postal vote applications close tomorrow
There’s just one day left to apply for a postal vote for the General Election.
