Extensive underwater searches around Blackrock Island in Co Mayo have failed to locate any trace of two missing Coast Guard crew members.
Ciarán Smith and Paul Ormsby have been missing since the Rescue 116 helicopter crashed into the island in mid March.
During several hours of operations today and yesterday, 25 square kilometres around the crash site was extensively surveyed by teams of specialist divers.
They focused on the northwest, west and southwest sides of the island, searching to depths of up to 30 metres. The effort involved over 160 divers from clubs and rescue teams across the country.
Organisers said the number of divers involved made this weekend's operation the biggest of its kind ever to take place here.
The co-ordinated dives were designed to rule out specific areas of interest that had been difficult to access or assess since the rescue operation began on 14 March.
Conditions were generally favourable with good visibility and slack tides. This allowed the divers to review a significant area, in what is an extremely challenging environment.
In a further show of support for the search and rescue services, divers travelled from almost every county to participate. Their activities were supported by local fishermen, who provided transport and advice regarding the currents and terrain around Blackrock.
Volunteers were accommodated by locals in the area, where a huge community effort has been ongoing since the crash.
The dives have now concluded, bringing to an end the detailed searches around Blackrock Island.
The search operation, while scaled back, is still ongoing. Fishermen and others putting to sea are being asked to remain vigilant for any trace of the missing men in the days and weeks ahead.
Further shoreline searches are also planned along the Mayo and Donegal coast.
