An Italian radical anarchist group has claimed responsibility for three mail bomb attacks on a Greek prison, an office of the Swiss nuclear power industry and an Italian military barracks, authorities said Friday.
Two of the bombs exploded, injuring two people in Switzerland and one in Italy, while officials at the maximum security Korydallos prison in Athens defused the third device Thursday.
Greek police said the Informal Anarchist Federation, or FAI, expressed solidarity with suspected radical anarchists in prison in Greece, Switzerland, Chile and Germany, in a proclamation found inside the parcel.
FAI has claimed responsibility for parcel bombs sent to the Chilean, Swiss and Greek embassies to Italy in December, which injured two people. The group said it was responding to an appeal by Greek anarchists to step up attacks.
A Swiss federal prosecutor said on Friday that a FAI proclamation was found in the remains of the bomb, which blew holes in a table and the floor at the Swissnuclear office in the northern city of Olten.
Carlo Bulletti told reporters in Bern that the group demanded the release of three people imprisoned for the attempted bombing of an IBM nanotechnology research center near Zurich last year.
Bulletti said Swiss authorities would be meeting soon with their Italian and Greek colleagues.
In Italy, the ANSA news agency said a FAI proclamation linked the blast in the northern city of Livorno with the Italian military involvement in Afghanistan and Libya.
Authorities in Livorno said nobody was immediately available to confirm the report.
Nine suspected members of the Greek radical anarchist group Revolutionary Nuclei of Fire are currently on trial at a court set up inside Korydallos prison, for their alleged role in bombings and other attacks.
The group has claimed responsibility for a spate of parcel bombings last November, which targeted embassies and even reached the office of German Chancellor Angela Merkel, and appealed for solidarity from international anarchist groups.