One of the six-person crew of the Tit Bonhomme was rescued when he was able to reach the shore, after the boat ran aground near Adam's Rock at the mouth of Glandore Harbour.
The missing include skipper Michael Hayes from Helvic Head in Co Waterford, Dubliner Kevin Kershaw (21) and Egyptians Said Mohammed (23), Wael Mohammed (35) and Attea Ahmed Shaban (26).
Abdul Mohammed (43) was airlifted by Irish Coast Guard helicopter to Cork University Hospital, where he is in a stable condition.
As previously reported on Afloat.ie, the fishing boat was returning to its home port of Union Hall early on Sunday in strong force 7-8 southeasterly winds when the incident occurred.
The Irish Times has more on the story HERE.