What police have described as a 'large fight' in Maughold on Friday left a man needing hospital treatment.
Police say the scuffle broke out at a house party at the lighthouse in the village.
Ramsey police are calling for people who were at the party - which carried on into the early hours of Saturday morning - to come forward.
Call them on 812234, or police headquarters on 631212.
£150,000 spent supporting Ukrainians
273 approvals were issued for people fleeing war
Fire crews respond to structure fire in Braddan
Residents advised to test smoke and fire detections systems regularly
MGP newcomer reflects on performance
Illiam Quayle says he achieved all his goals
Manx Care offering RSV vaccine
Eligible people will be invited for their appointment