PESHAWAR: A labourer was killed when two rival groups traded fire over a disputed plot in Dauranpur near Motorway. An official said one Sadiq and Fazal had a dispute over a plot. On Saturday, the labourers were working in the plot when Fazal and others allegedly opened fire, killing a labourer Ziaur Rehman and injuring a passerby. In another incident, the police arrested four persons when two rival groups took positions against each other in Tehkal.