(A picture of the second black box. Photo: Boris Horvat/AFP)
All 150 people on board Flight 4U9525 from Barcelona to Düsseldorf were killed when it crashed into the Alps, in the bloodiest such disaster on French soil in decades. Half of the passengers were German and more than 50 were from Spain.
French prosecutor Brice Robin said 150 DNA strands had been isolated but stressed this did not necessarily mean all the victims had been identified.
Identifying the remains of everyone on board would take "three to five weeks," he said.