It was located on the sea bed at a depth of around 40 metres
The wreckage of missing Coast Guard helicopter Rescue 116 has been located off the Mayo coast.
It comes after a remotely operated vehicle (ROV) was used in the water last night and this morning.
The Air Accident Investigation Unit (AAIU) say the find was made in consultation with An Garda Síochána, the Navy, the Coast Guard, the GSI and the Marine Institute.
The wreckage was found on the sea bed on the eastern side of Black Rock, at a depth of approximately 40 metres.
It says operations are continuing, but are weather dependent.
The AAIU confirmed on Monday they believe the helicopter had struck rocks around Black Rock Island.
They had said they were "anxious" to recover and examine as much wreckage as possible, and to recover the black box flight data recorder.
A significant amount of wreckage has already been taken from the sea and is undergoing a detailed examination.
Equipment aboard search vessels on the surface detected a signal, which was believed to be from the underwater locator beacon attached to the black box.
This signal pointed toward an area which was the focus of further investigation.
The Sikorsky S92 helicopter is believed to have crashed into the sea last Tuesday.
The search is continuing for the bodies of three crew members - Captain Mark Duffy, winchman Ciaran Smith and winch operator Paul Ormsby - who have yet to be found.
The ROV was not able to confirm if the three missing crew were found with the wreckage.
Captain Dara Fitzpatrick (45) was located in the water but pronounced dead in hospital. She was laid to rest last Saturday.