Two Iranians and five Italians were arrested Wednesday in Italy on suspicion of trafficking arms to Iran in violation of international sanctions, a top anti-terrorist prosecutor said. "It is an investigation of considerable importance because it concerns the entire international community," Armando Spataro told a news conference, adding that it had begun in June 2009. The probe scuppered the planned export to Iran of large quantities of anti-tank projectiles and explosives, said Lieutenant Colonel Vincenzo Andreone of the financial police, who led the operation. "During the investigation, one of the arrested Italians, a lawyer, went to Iran where he had contact with high officers of the Iranian army," Andreone said.