Video shows deadly explosion on highway in Bologna, Italy

BOLOGNA, Italy -- A major explosion on a highway in Bologna, Italy, has left at least two dead and up to 70 people injured, the Associated Press reports.

The explosion happened after an accident that involved a truck carrying liquefied petroleum gas, according to the Italian news agency ANSA. The explosion caused the thoroughfare to partially collapse.

Video captured by a witness shows the explosion and a plume of smoke filling the sky.