TOULOUSE, France - Investigations resumed Thursday at a French military laboratory into the wing part that Malaysia's prime minister confirmed as being from missing flight MH370, an AFP journalist said.
An international team of experts began a second day of tests on the chunk of wreckage that washed up on the French Indian Ocean island of La Reunion last week.
French prosecutors were more cautious in their initial findings on Wednesday than Malaysian Prime Minister Najib Razak, saying only that there was a "very high probability" that the wing part, known as a flaperon, was from missing Malaysia Airlines flight MH370.
But they confirmed the part was from a Boeing 777, of the type that vanished without trace on March 8, 2014, after veering off course while flying from Kuala Lumpur to Beijing.
The disappearance of the plane, which had 239 people on board, sparked a colossal, multinational sweep of the seas for wreckage, and a myriad of conspiracy theories about its fate.
France has a legal involvement in the investigation because it lost four citizens in the incident.