Incident happened near Quids Inn last month
Police are appealing for witnesses to an incident near a pub in Douglas.
The disturbance happened between Quids Inn and Rochester Court apartments on Loch Promenade.
Officers say no further details can be released about the incident, which happened just after midnight on 7 September.
However, anyone who remembers seeing anything suspicious is asked to contact PC Malcolm Oates at police headquarters on 631212.
Improving Island's whistleblowing policies like 'turning an oil tanker', says PSC
Chair says it's too soon to say how effective they are
Old Castletown Road to close for over two weeks
It is so 'essential' refurbishments can be carried out
Fewer property sales in January but average price rises
Latest figures show average property price at £341,000
Manx team competes in 'Olympics' of Sheep shearing in New Zealand
The event concludes today, after three days of intense competition
Sign up for Isle Listen 'Castle to Castle' challenge
Fifteen-mile challenge taking place later this month