The first passengers rescued from a helicopter that ditched in the North Sea have arrived at hospital.
Fourteen people - 12 passengers and two crew - were on board the aircraft when it came down 25 miles off the coast of Aberdeen shortly after midday.
The EC225 helicopter, operated by Bond Offshore, had been on its way from Aberdeen to the offshore Maersk Resilient rig and the Ensco 102 rig. Rig operator Conoco Phillips said the passengers were contractors on their way to support the drilling rigs.
Two of those on board worked for Halliburton and the others were from Ensco, Brundt and Stag, Conoco Phillips said. The companies could not be immediately contacted for comment.
A Bond spokesman said: "A low pressure oil warning light came on and the helicopter made a controlled descent and landed in the North Sea. It didn't crash."
The alarm was raised and a major rescue launched. Everyone on board was recovered from the sea and put in life rafts. They were then being flown back to Aberdeen for medical checks, although it is understood no-one was injured.
First Minister Alex Salmond said it was a "very concerning" time for the friends and family of the people on board the helicopter.
He said: "Thankfully it has been confirmed that all on board have been rescued and the indications are they will all be admitted to Aberdeen Royal Infirmary on a precautionary basis.
"Incidents such as these remain very rare but do serve as a stark reminder of the dangers faced by those offshore workers who are required to use helicopters on a regular basis.
"Once all of those involved have been transferred ashore, the priority will be for the appropriate authorities to investigate the causes of this accident and ensure the future safety of flying operations in the North Sea."