Italian prosecutors on Wednesday opened a probe into possible manslaughter following an explosion at a fuel depot facility near Florence owned by Italian energy firm Eni that killed five people, two judicial sources said.

The death toll in an explosion at a fuel depot facility near Florence, owned by Italian energy firm Eni, rose to four after two bodies were recovered under the rubble, the local prosecutor's office said in a statement on Tuesday.

A fire at a fuel depot run by Italian energy company Eni has killed five people, a local official said Tuesday, with emergency services recovering the bodies of three missing people.

Rescuers found two more bodies on Tuesday at the site of the massive explosion that hit a fuel depot a day earlier in the central Italian region of Tuscany, bringing the death toll to four, local officials said.

Eni SpA E has confirmed a tragic explosion at its fuel depot in Calenzano, located near Florence, Italy, early Monday morning. The explosion occurred at a loading bay, resulting in a fire that was swiftly extinguished by firefighters.