The Irish Coast Guard has joined in the search for a Corkman missing from his home in the city since the early hours of yesterday morning.
Gardai
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Mr O'Connor is described as 5foot 9in tall, of thin build with short dark hair and green eyes and when last seen was wearing a black anorak and blue-striped t-shirt.
This afternoon, Gardaí in Mayfield requested the assistance of the Irish Coast Guard and the Irish Coast Guard helicopter from Shannon is now aiding in the search.