A long train of oil-filled tanker cars derailed and crashed in the town of Lac-Megantic, Quebec early this morning, leading to a massive explosion and fireball. Sixty people have been reported missing, though so far no casualties have been confirmed.

The train itself was unmanned at the time, and its unclear how the 77 train cars became decoupled from their parked locomotive, according to the BBC. The train rolled down a hill and four cars subsequently exploded as the train came off the rails. 120 firefighters are still battling the blaze and town officials fear further explosions. The center portion of the town has been "almost destroyed," according to the Montreal Gazette.

Massive Train Explosion Levels Huge Swath Of Quebec Town [UPDATE]S

We'll update you as we have more information.

UPDATE: One person is confirmed dead so far, according to the Globe and Mail.

UPDATE #2: The out-of-control train traveled 6.8 miles before derailing, according to the Wall Street Journal, and 1,000 residents have been evacuated.

Photo credit: Sûreté du Québec