Investigators will try to establish what caused a helicopter to plunge into the North Sea, killing four oil workers, after the wreckage was recovered from the water.
Misty conditions last night hampered efforts to salvage the wreckage of the Super Puma and transport it back to shore for examination by a team from the Air Accidents Investigation Branch (AAIB).
It is understood that the remains of the Super Puma AS332 L2 were eventually lifted on to the deck of the vessel Bibby Polaris which was due to travel to a mainland port.
It is hoped information on the helicopter's black box recorder will help establish the cause of the crash.
More top news
Mladic, now 75, was the military commander of Bosnian Serb forces in the 1990s, who fought against the Bosnian Croat and Bosniak armies.
Weather: Heavy rain and strong winds in the north
His representatives said Cassidy, who was hospitalised last week, died "surrounded by those he loved."