According to the ANSA news agency, Treviso Prosecutor Michele Dalla Costa said that the incident was "terrorism."
On Thursday, media reported that an explosive device went off near Lega's office in the town of Villorba.
READ MORE: Explosion Hits Office of Lega Party in N Italy, No People Injured — Reports
No one was hurt in the incident. Another bomb found by the police at the site was deactivated. The Haris Hatzimihelakis anarchist group reportedly claimed responsibility for the blast.