Canadians will take part in decoding and analyzing the black boxes of the crashed plane.

Representatives of Canada visited the crash site of the Ukrainian Boeing in Iran, which killed 57 Canadian citizens, and will soon study the wreckage of the plane. Canadian Transport Minister Marc Garneau announced this on Wednesday.

Tehran has not yet granted Canadians access to the plane’s black boxes, Garneau said, speaking at a press conference in Ottawa.

Iran issued entry visas to the Canadian delegation. It consists of two experts from the transport Security Council. Now the Canadians are already in Tehran and are figuring out how and why the Iranian military shot down a Ukrainian plane on January 8. Recall that the crash killed all 176 people on board.

“They visited the crash site. Today, two investigators will examine the wreckage,” Garneau said.

“What the Iranians have told us is that we will be allowed to participate not only in decoding the black boxes but also in analyzing it,” the Canadian Transport Minister added.