Holyhead coastguards have been searching waters around Newry Beach after receiving reports that items of men's clothing had been discarded on the shoreline.
The call came at 06:53 GMT from a member of the public who reported seeing a hooded top and jeans.
The Holyhead Coastguard team and inshore lifeboat say they have now returned to base and await further updates from North Wales Police who are also assisting with the search.
More top news
Dull and damp for much of Wales as we start the day, with drier and brighter weather on the way this afternoon.
The heaviest of the rain will ease overnight. Remaining mild but breezy around coastal areas.
Every time you give blood, you save a life. And for 70 years, more than 10 million units of blood have been donated in Wales.