Two explosive devices have targeted cars belonging to the Italian embassy in Greece, one of which went off, causing no injuries.
According to Greek police, there was no immediate claim of responsibility and officers said they were investigating.
In a statement, the police said a homemade bomb exploded on Friday, damaging a vehicle parked at the home of an embassy officer in an Athens suburb.
The other device, placed near a second diplomatic vehicle, did not go off.
Italian Prime Minister Giorgia Meloni expressed deep concern at what she called an attack probably of anarchist origin.
Meloni added she was following the case “with the utmost attention” through Foreign Minister Antonio Tajani who was in Athens for talks on Friday.