A communications truck was set on fire in central Athens on Tuesday, and youths hurled rocks and fire bombs at riot police, as a huge demonstration against new austerity measures descended into violence. The demonstration was called by unions, alongside a general strike that has brought the country to a standstill. Firefighters arrived on the scene to extinguish the blazing truck, the second one to be set alight during Tuesday#39;s riots. Tuesday#39;s clashes came at the start of a two-day strike called by unions furious that the new 28 billion euro (40 billion US Dollar) austerity program will slap taxes on minimum wage earners and other struggling Greeks. .RT on Facebook: on Twitter: