An explosion that had damaged a car in a nearby car park had sparked panic among workers at the Poste Italiane office in the Aventino neighbourhood today.
So far, no injuries were reported.
The Independent reported that police believe the explosion was an “act of protest” but the target was unclear.
It is also reported that the homemade devices used flammable liquid and were placed between cars in a car park in Via Marmorata, which links the River Tiber with the Pyramid of Caius Cestius in central Rome.