Investigators have retrieved black boxes of the Air France jetliner that skidded off the runway while landing in a thunderstorm at the Toronto's Pearson International airport, and burst into flames.
However, all 309 people on board had a miraculous escape. Some 43 people sustained minor injuries, including broken bones, cuts and bruises.
The boxes, holding the jetliner's cockpit voice recorder and flight data recorder, were recovered on Wednesday from the aircraft's charred wreckage.
43 injured in Air France crash in Toronto
"Yes, I can confirm that the black boxes have been recovered. They're in the hands of the Transportation safety Board," Vice President of the Greater Toronto Airport Authority, Steve Shaw, said.
Experts examining the flight data and voice recorders said they were looking at severe weather and runway conditions as possible causes behind the accident. Any information recorded in the boxes will be downloaded at an Ottawa lab, senior investigator with the Tranportation Safety Board Don Enns said.
Canada's Transport Minister Jean Lapierre said it was a "miracle" that none of the 297 passengers and 12 crew were killed in the crash. Real Levasseur, lead investigator for the Transportation Safety Board, said there had been some fire damage to the recorders, but they "look pretty good" and that investigators should be able to recover information from them.