Manx Gas engineers have closed a road in Ramsey as they carry out emergency repair work.
The company hasn't said why it needs to shut Windsor Mount, which runs from North Shore Road to Windsor Road.
The work is expected to last 24 hours, and the firm has apologised for invoncenience.
TT organisers announce revised Saturday race schedule
Senior race to be restarted over four-lap distance tomorrow (6 June)
TT campers in 'high spirits' despite rain affecting race week
'Costa del Ballaugh' one week, mud the next
Rider taken to Noble's Hospital after Senior TT red flag
Competitor 'conscious and talking' after incident at 11th Milestone
Red flag stops Senior TT race
Race halted during second lap
Further delay to TT schedule due to 'non-racing operational matter'
Clerk of the Course confirms change to proceedings