Latest: Capt. Dara Fitzpatrick leaves behind 'heartbroken' family and 3-year-old son; 3 missing crew named

Latest: The three missing Irish Coast Guard crew members have been named locally as Mark Duffy, Ciarán Smith and Paul Ormsby.

What we know so far:

• Captain Dara Fitzpatrick, who was recovered critically ill this morning, later died in hospital. She is survived by her three-year-old son;
• The three missing crew members have been named locally as Mark Duffy, Ciarán Smith and Paul Ormsby;
• A search operation is on-going for the missing Coast Guard helicopter and crew members; Contact was lost at about 12.45am this morning;
• The aerial search will resume at 7am tomorrow, Wednesday. Crews hope to continue the surface search through the night tonight;
• The rescue helicopter's last known location was about six miles west of Blacksod, Co Mayo;
• Debris was found during today's search. The black box has not yet been located;
• The director of the Coast Guard said "hope is fading" for the missing crew members.