Norway helicopter crash: 13 killed near Bergen
Thirteen people are presumed dead after a helicopter crashed west of the Norwegian city of Bergen, rescuers say.
Eleven of those on board were Norwegian, one was British and one Italian. No survivors have been found.
A major rescue operation was launched but ended within hours of the crash.
Meanwhile Norway's civil aviation authority has imposed a flight ban on the type of helicopter that crashed - the Eurocopter (EC) 225L Super Puma. Reports say it was "totally destroyed".
The aircraft was flying from the Gullfaks oil field to Bergen, a centre for the North Sea oil and gas industry.
Eleven bodies have been found, and two other people are still missing.
Norwegian Prime Minister Erna Solberg said news of the crash was "horrible".
King Harald and Queen Sonja cancelled a trip to Sweden, Norwegian broadcaster NRK reported.
'Peculiar engine sound'
Oil company Statoil said the aircraft was "on assignment". All the passengers were Statoil employees , reports say.
Both Statoil and the UK energy company BP have suspended use of the Super Puma.
The helicopter came down near the small island of Turoey, just west of the village of Solsvik.
EVN grab
EPA
Eyewitnesses reported seeing the helicopter's rotor blade come loose and shear off.
"There was an explosion and a very peculiar engine sound, so I looked out the window. I saw the helicopter falling quickly into the sea. Then I saw a big explosion," a resident told local newspaper Bergensavisen.
Photos from the scene showed thick smoke coming from an area of rocky islets.
Local media said the helicopter dropped 640m (2,200ft) in the last 10 seconds before it crashed. Some wreckage was found on the rocks, and parts of the fuselage are in the sea.
AirTeamImagesEurocopter EC225 Super Puma
- Widely used in offshore oil and gas industry around the world
- More than 220 in service
- Can also be used in search and rescue and fire-fighting roles
- Carries 19 passengers plus two crew and can fly for up to five-and-a-half hours
- Safety features include self-deployable emergency flotation device, and traffic collision and avoidance system
Source: Airbus Helicopters
The UK's Air Accidents Investigation Branch is sending a team to Norway because it has investigated a number of crashes involving helicopters operating to and from offshore oil and gas fields in recent years.
In 2012, EC225 Super Puma helicopters crashed in two incidents in Scotland, one off Aberdeen and another off Shetland. Both crashes were blamed on gearbox problems.
In both cases, all passengers and crew were rescued. EC225s in the UK were grounded following the crashes but given the go-ahead to resume flying in 2013.
Helicopter International magazine editor Elfan ap Rees said major modifications seemed to have dealt with the gearbox problem, and it was difficult to know what could have gone wrong in the Norwegian crash.
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