At least six persons were injured in clashes between the activists of two political parties at Hala Road and American Quarters areas of Hyderabad, a private TV reported. The angry mobs set an office and vehicle on fire. According to reports the gunmen of two political parties trade fire at Hala Road in Hyderabad late last night in which six persons were injured. After the incident angry mobs set an office of a political party and a vehicle on fire. The incident said to be result of old enmity between two groups in the locality. The injured were shifted to civil hospital Hyderabad. Police have combed the area after the incident, however no arrests reported.