Boston and federal officials are opening investigations into the fatal 298 Beacon St. fire that could take months to complete.
"It's still too early to determine just what happened," BFD spokesman Steve MacDonald said this morning.
He said the department will convene a board of inquiry consisting of chiefs who did not respond to the fire to conduct an investigation. NIOSH, a federal agency, will also investigate, he said.
A key focus, he said, will be determining the exact nature of the "extraordinary" event that led the firefighters to issue a rare Mayday call and trapped them in the basement.
They hit the mayday but the problem, of course, is the sheer volume of fire and it was some kind of extraordinary incident, almost all of us believe it was wind related.