Tank-armed Turkish Army troops besieged the southeastern provincial city of Diyarbakr on Wednesday where streets turned into battle zones in escalating violent clashes between the Turkish government troops and Kurdish activists, Anatolia news agency reported. -- The news agency said 70 people have been arrested since the clashes erupted two days ago, adding that the Kurdish activists set buildings afire in the city.According to initial reports from the city, several journalists and policemen were wounded in the clashes that inflicted damage, estimated at million of dollars. Facades of many stores have been damaged or destroyed and a four-storey building housing a bank has been set ablaze. Buildings housing security forces have been attacked with stones by the agitated demonstrators. A demonstrator who attempted to raise a picture of Abdullah Ocalan, the imprisoned chief of the outlawed Workers Part of Kurdistan (PKK), was shot dead in a town near the city.