The coastguard is confident that divers will be able to get back down to the wreckage of the Rescue 116 helicopter today.

Search teams want to move the aircraft in their search for two missing crew men.

The Air Accident Investigation Unit says the aircraft's Black Box data does not suggest there was any mechanical issue when the helicopter went down off the Mayo coast near the Blackrock Lighthouse over two weeks ago.

The Irish Coastguard's search and rescue operations manager Gerard O'Flynn says weather conditions will deteriorate later: