Genova, 12 April (AKI) - Anarchists on Friday claimed responsibility for a parcel bomb delivered earlier this week to La Stampa newspaper in Turin.

In a letter sent to the Genova daily Secolo XIX, The Informal Anarchist Federation (FAI) and a second anarchist group, the International Revolutionary Front, said they had sent the bomb to La Stampa's offices on Tuesday.

The letter calls La Stampa "an organ of the regime" and disparages journalists as "hacks" who abet the Italian state in "repressing" the anarchist struggle to overthrow it.

The groups also claimed a letter bomb sent this week to a police investigative agency in the northern city of Brescia.

The letter, published on Secolo XIX's website, refers to the kneecapping in Genova last May of the "louse" Roberto Adinolfi, the chief executive of Italian nuclear power company Ansaldo.

"We targeted those providing the technology of repression, who are guilty of evil and causing suffering, like the lousy moneygrubber Adinolfi," it read.

Italian anti-terrorist police investigating the group's message said that the parcel bomb was 'dedicated' to two FAI members, Alfredo Cospito and Nicola Gai, who were arrested in September for shooting Adinolfi in the leg.

La Stampa's offices were evacuated after anti-terrorism police said the package was not a hoax and only failed to explode due to an electrical fault.