From Spiegel online:
"According to the French Ministry of the Interior of the crash site is about 2000 meters altitude in the Alps. A spokesman said they go from an extremely long and difficult search, because the area was so remote.
The crash took place near the solid mass of the Three Bishoprics, a rock formation near Digne, which reaches up to 3000 meters. The area - jagged structures with glaciers - is difficult to access.
The rescue team of the gendarmerie take a long time to reach the accident site: So far, 400 men were mobilized, which are given the terrain and the height can quickly reach the crash site by helicopter.
"Our thoughts are with the people on board and their families," said EU Transport Commissioner Violeta Bulc. "It is a tragedy on our soil," Hollande said. He will soon speak with Chancellor Angela Merkel. France's Interior Minister Bernard Cazeneuve made his way to the scene of the accident.
Even German experts wishing to participate in the clarification of the cause. As the Federal Ministry of Transport announced that experts are of the Federal Bureau of Aircraft Accidents Investigation already on their way to the scene.
"We still do not know exactly what happened to Flight 4U 9525," said Lufthansa CEO Carsten Spohr. "My deepest sympathy to all relatives and friends of our passengers and crew of 4U 9525th If the fears should confirm this is a black day for Lufthansa."
"We are doing everything possible to analyze the situation," said an Airbus spokeswoman. "As soon as we have more information, we make known." The Airbus A320 is the group's most successful model. Of the medium-range jet almost 3700 machines in use worldwide.
The Foreign Office established as well as the French and Catalan government a crisis unit. By calling 030/5000 3000, members could inform a spokesman. You stand in close contact with the French authorities. The airport Dusseldorf addressed a crisis hotline with a 0800/7766350.
Foreign Minister Frank-Walter Steinmeier said: "In this difficult time, our thoughts are with all those who have to worry about that their relatives among the passengers or crew members are."
and from France 24:
"The investigation into the cause of the crash is centered on why the Airbus went into a steep descent just a minute after reaching its cruising altitude, without informing air traffic controllers that it was in distress.
Germanwings flight GWI18G / 4U9525 took off from Barcelona at 9.01GMT, then reached its cruising altitude at 9.45, maintaining its height for less than a minute before going into a sharp descent for eight minutes.
Contact between the aircraft and French air traffic control broke off at 9.53 when the Airbus was at 6,000ft, but at no point did the pilots send a mayday signal or tell air traffic controllers there was a problem.
The airline said it could not say whether it had been a "conscious" decision by the pilots to go into a dive, or whether the crew were incapacitated.
It is thought that it came down moments later near Prads-Haute-Bléone, between Digne-les-Bains and Barcelonnette, north-west of Monaco. Bernard Cazeneuve, the French interior minister, said debris had been found at an altitute of 6,500ft on a group of mountains called Les Trois Eveches.
Francois Hollande, the French president, said no survivors were expected to be found, after two gendarmerie helicopters flew over the crash site.
M Vidalies said footage from the helicopters showed "wreckage and a few bodies around the plane".
Germanwings said in a statement that 144 passengers - including two babies - and six crew were on board. They are thought to include 67 Germans and 45 Spaniards.
Sixteen German schoolchildren who had been on an exchange trip to the Catalan town of Liners del Valles are also reported to have been on board, together with two teachers. Others are thought to include tourists returning home from Barcelona and Majorca.
Oliver Wagner, a spokesman for the airline, said: "I promise that we will do everything to clear up the events thoroughly. We are endlessly sorry for what has happened."
The 24-year-old aircraft had been used for flights between Britain, Spain, Austria and Germany and flew from Heathrow to Dusseldorf and back on Sunday afternoon.
The Spanish authorities said 45 Spaniards were on board, with Germans and Turks making up most of the rest of the manifest. The Foreign Office said it was "urgently working with local authorities to establish the nationalities of those on board".
Lufthansa said it knew exactly who was on the aircraft, and in which seat, but did not yet know all of their nationalities.
M Hollande said: “There are not thought to be any survivors. The conditions of the accident, which have not yet been clarified, lead us to think there are no survivors.
"It is a tragedy on our soil."
He said the crash site was "particularly hard to access". Local mountain guides said the area would only be accessible on foot or by skiiers dropped by helicopters, but bad weather will make it difficult to send helicopters this afternoon.
"The zone is snow-bound and inaccessible to vehicles,” said French Transport Minister Alain Vidalies.
French Interior Ministry spokesman Pierre-Henry Brandet said he expected "an extremely long and extremely difficult'' search and rescue operation because of the area's remoteness.
French Prime Minister Manuel Valls said a helicopter had managed to land near the crash site and that no survivors had been found.
The weather in the area deteriorated Tuesday afternoon, with a chilly rain falling, further hampering search efforts."
French Interior Minister Bernard Cazeneuve (centre) is sheltered from the rain upon his arrival in Seyne, south-eastern France.
Debris is scattered over an area of 2 sq km, according to French search and rescue.
Sebastien Giroux, one of the first eyewitnesses, said he saw the aircraft flying very low. “There was no smoke or particular sound or sign of anything wrong, but at the altitude it was flying it was clearly not going to make it over the mountains,” he told BFM-TV. “I didn’t see anything wrong with the plane, but it was too low.”
Very sad. RIP