Nawabshah- At least three persons were killed and four others injured in clash between two groups over old rivalry today.

Police said that armed men of two rival groups residing in suburbs of main Nawabshah town traded fire after members of one group opened fire at the other. In cross-firing which continued for more than half an hour three persons were killed while four were wounded. The wounded people were shifted to hospital for medico-legal formalities where condition of two was stated to be serious. Tension and fear gripped the area due to heavy firing and murder of three persons. Heavy contingent of police reached the scene after the clash and brought the situation under control. Meanwhile, police have registered a case against armed men of both the groups and started the investigation.