A truck exploded on a motorway near Bologna Airport on Monday.

It was an accident, but two people have died.

At least 70 people are also injured.

Two cars on the motorway also blew up after the truck's combustion, according to Italian media.

A truck exploded on a motorway near Bologna Airport, leaving two people dead, and sending a giant fireball into the sky.

The accident took place around 2 p.m. local time in Borgo Panigale, an area on Bologna's outskirts, Italian newspaper Il Fatto Quotidiano reported.

The truck had been transporting flammable substances, the Associated Press reported, citing Italy's ANSA news agency.

At least two people died and about 70 others are injured, Italian police confirmed. Fourteen people are seriously injured, La Repubblica reported, citing local police.

Following the truck's combustion, two more cars on the motorway also blew up, causing multiple explosions, according to Italian newspaper La Repubblica. The newspaper described the episode as "an apocalyptic scenario."

The bridge also partially collapsed, as can be seen in the video below:

—Polizia di Stato (@poliziadistato) August 6, 2018

Bologna Airport confirmed the explosion but said it had not been involved or affected. It added that flights would continue to run regularly. Local police closed the road in both directions, the Evening Standard reported.

Watch the dramatic scene unfold from various angles in the photos and videos below:

—Polizia di Stato (@poliziadistato) August 6, 2018

#bologna #explosion today, #borgopanigale A post shared by Michela Roth (@michela.roth) on Aug 6, 2018 at 6:18am PDT Aug 6, 2018 at 6:18am PDT

—Instant News Alerts (@InstaNewsAlerts) August 6, 2018