Turin, September 12 - Protesters against the controversial high-speed TAV rail project between France and Italy were blamed Thursday for a fresh attack on a company involved in the project. Tear-gas shells were also found at a construction site in the Susa Valley east of Turin where a storage container with plastic items inside was set on fire. Attackers also tried to set the tires of a piece of heavy equipment on fire, but were unsuccessful, police said. The words 'No TAV' were found scrawled on the equipment, police said. The Lyon-Turin high-speed link in the Susa Valley, a joint Italy-France project, has triggered protests throughout Italy for several years, some involving violent clashes with police, vandalism, threats and disruption of highway traffic. Opponents say the project threatens sensitive environmental areas and will cost too much public money, while supporters argue it will cut down on vehicle traffic and pollution.