Brazil's military has found wreckage from the Air France passenger jet that disappeared with 228 people on board, the country's defence minister says.
Nelson Jobim said on Tuesday that there was no doubt that Flight AF447 had crashed into the Atlantic after Brazilian military aircraft found debris along a 5km stretch of the ocean.
Speaking in Rio de Janerio, Jobim said that the find confirms that the plane went down in that area, hundreds of kilometres from the Brazilian archipelago of Fernando de Noronha.
No bodies have yet been spotted among what was said to be metallic and non-metallic debris.
Search aircraft continue to scour the area and the first navy ships are expected to arrive today.
The wreckage was spotted about 1,000km off the country's coast and included aircraft seats, an orange buoy, metallic objects and fuel slicks.
Brazilian commercial pilots said earlier on Tuesday that they had spotted what appeared to be fire in the Atlantic.
The Air France flight from Brazil to France with 228 people on board dropped off radar screens on Monday morning, hours after taking off from Rio de Janeiro.
The authorities say they are still trying to determine what caused the accident but think there is no chance of finding survivors.
The airliner had encountered a severe thunderstorm before sending an automated message saying that its electrical system had failed at 02:14 GMT on Monday.
Pierre-Henry Gourgeon, Air France's chief executive, said several electrical systems had broken down.
It is probable that it was shortly after these messages that the impact in the Atlantic came, he said.
Jean-Louis Borloo, the French environment minister, said officials did not believe the Airbus A330-200 could have been brought down by something as simple as a bolt of lightning, which previous reports had suggested.
There really had to be a succession of extraordinary events to be able to explain this situation, he told RTL radio.
He said the race against the clock has begun to find the aircraft's two data recorders, commonly known as black boxes, which emit signals for up to 30 days.
Jobim said the recorders could be on the ocean floor as far down as 3,000m.
Alain Bouillard, who led the probe into the crash of a Concorde in July 2000, has been put in charge of France's accident investigation team.
Herve Morin, France's defence minister, said we have no signs so far of terrorism, but all hypotheses must be studied.
Air France said the 216 passengers from 32 countries comprised 126 men, 82 women, seven children and a baby. More than half of the passengers were either French or Brazilian. There were also 12 French crew members on board.
If confirmed that all 228 people on board are dead, it would be the worst loss of life in Air France's history and civil aviation's worst accident for more than a decade.