Four people were killed in violence across Balochistan on Tuesday. Three people were killed and seven injured in a tribal dispute in Dera Bugti. Local sources said that members of the Bugti and Kalpar tribes clashed with unidentified men, and the exchange of fire resulted in the casualties. "The firing broke out abruptly in Gandoi Camp. Both sides used rocket launchers and medium-range weapons," sources said. They said that the fighting went on for a long time. The cause of the clash could not be ascertained.In a separate incident, part of a railway track was blown up in the Nothal area of Dera Murad Jamali and disrupted the train service. "Trains have been stopped as the track has not yet been repaired," a local journalist told Daily Times. He said that two more bombs had been recovered and defused near the track. A man was killed by a blast in Western Panjgur district, while police managed to defuse another bomb. Police in Turbat claimed to have recovered huge quantities of weapons. However, no arrests have been reported.