Police closed the road where the crash happened as well as the surrounding area in Borgo Panigale, on the outskirts of the city.
A massive explosion was reported near Bologna airport in Northern Italy.
In a tweet, Bologna Airport said it wasn't affected by the explosion.
Italian media reported that numerous injured were hit by debris and shattered glass after the explosion.
Italian news agency ANSA said the tanker was transporting flammable substances and exploded on impact. Aerial photos showed a gaping hole in the raised highway next to the tanker.
Fire raging on the motorway outside Bologna
"My vehicle is still under the flyover, I am waiting to see if and when I can get it back", Marco Rosadini, from Arezzo, Italy, told Italian news agency ANSA. "I saw a huge plume of smoke", Crisina Felicani told Sky TG24.
"It nearly would have been an ordinary accident except for the highly flammable material this truck was transporting", firefighter Carlo Cardinali told Sky.
Video of the incident showed the tanker truck, which contained inflammable materials, slamming into the back of a lorry which had come to a halt because of heavy traffic.
Firefighters said the flames were extinguished some three hours after the explosion, and they were working to cool the area to facilitate operations, ANSA reported.
Two people have been confirmed dead and at least 56 have been injured.
ALS says they are working with public housing authorities to help make the transition to a smoke-free environment. According to the release, smoking in any area where it is not allowed will be treated as a "lease violation".
But as has been the case most of the week, it's not the heat but rather the humidity that makes it rather unbearable outside. As much as two to four inches of rain can fall in parts of the area during the next 48 hours.
The iPhone maker's market capitalisation reached the figure in afternoon trading in NY as its shares rose above $207. However, the share price quickly fell back, leaving the company worth just $962 billion at the time of writing.
The Akron school will expand each year, adding second and fifth grades next year and will have students from grades 1-8 by 2022. Monday's grand opening was expected to be the time James would make his first public remarks since signing with the Lakers.
China and other U.S. trade partners slapped tariffs on incoming shipments of USA soybeans , dairy, meat, produce and liquor. Larry Kudlow, President Trump's chief economic adviser, said he would be involved in the negotiations, to be led by U.S.
He brushed aside suggestions that the administration had been deceived by Kim. "We have not been taken for a ride", he said. The DPAA Laboratory at Hickam Air Force Base, Hawaii, is the first USA stop for the recently returned remains.
When they fell they are going to the knockout phase and can win the World Cup, they close each other. Why? Well, because pre-season has been a bit of a nightmare for the Manchester United boss so far.
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