CHAGAI: A man was been killed while three others were injured in an armed clash between two groups of Afghan refugees at their camp in Chagai on Saturday. The Levies Force sources said that two groups of the same tribe of Afghan refugees opened fire at each other over a dispute at their camp in the Gardi Jungle area of Chagai. The Levies Force rushed to the site and took the control of the situation. The dead and injured were both shifted to hospital. The Levies Force has been investigating the incident.