Police say they were forced to close part of Douglas promenade on Saturday.
In the early hours, officers were called to an address on Central Promenade because of an incident.
A 22 year old local man was arrested and is currently helping police with enquiries.
No further details have been released.
2025 Senior TT Race cancelled
Only second time in history race has been called off when meeting has taken place
Unexploded ordnance found on path near Spanish Head
Footpaths closed from Chasms to Burroo Ned
Clerk of the Course explains 'difficult' decision to cancel Senior race
Finale to 2025 racing fortnight was called off this evening (7 June)
One person in hospital following Victoria Avenue incident
Police say incident was contained within a family
TT 2025: Senior TT moved to 7pm and shortened to four laps
Clerk of the course says tomorrow's forecast and shorter roads closure window means the race can't be run tomorrow