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
Generally cloudy with fairly persistent rain through this evening, but the cloud and rain will break up overnight with drier conditions.
Wales fans are continuing to celebrate yesterday's historic Euro 2016 win over Northern Ireland, which sees them make the quarter finals.
A lot has happened in the days since the Brexit result. We've been asking people how they're feeling about the fallout of the referendum.