Militants threaten 'armed struggle' against high-speed rail
Group's 'revolutionary court' has issued 'death sentences'19 February, 14:07
The Nuclei Operativi Armati (NOA) said its "revolutionary court" had condemned to death" officials and police who were allegedly "repressing" protests against the TAV line north of Turin.
The NOA letter, sent to ANSA's Turin office, came a day after a Carabiniere was indicted in connection with clashes in the Susa Valley in July 2011.
Prosecutors, who have opened a probe, said NOA was "already known to us".
NO-TAV protests, which have sometimes turned violent, have for years contested the line's economic value and said it will despoil pristine landscape.
The Italian and French governments have insisted the Turin-Lyon line go ahead to speed passenger and freight traffic and boost both countries' economies.
On February 7 Turin prosecutors requested a nine-month jail term for anti-establishment 5-Star Movement (M5S) leader Beppe Grillo for illegally building a large mountain hut in 2010 that became a centre-piece of the protests. Grillo, who heads Italy's second-biggest party, is also under investigation by prosecutors in several Italian cities for allegedly inciting soldiers to stop protecting politicians.