QUETTA – Three persons were killed and another wounded in two separate firing incidents in Mastug and Kalat districts, on Tuesday while a school Principal and trader were kidnapped in Quetta and Khuzdar.According to sources, some 30 km away from Kalat town at near Shekri Cross an armed clash erupted between two clans of a tribe over a piece of land.Both sides exchanged heavy firing against each other. Resultantly, two people identified as Muhammad Shafi and Muhammad Khair Jan were killed on the spot and Sanaullah sustained serious injuries.Local administration moved dead and injured to a nearby hospital and later handed over bodies to heirs for burial. In another incident, a person was killed in Shams Abad area of Mastung district. Abdul Rasheed, a teacher by professional was on his way when he was attacked by armed men with sophisticated weapons. As result, he received critical wounds and died before reaching the hospital. However, motive behind the murder could not be confirmed.On the other hand, a principal of school and trader were kidnapped in Quetta and Khuzdar.Habibullah principal of Jamia Salfia was passing from Airport Road of Quetta when unidentified armed men intercepted him and kidnapped him.Police after getting information rushed to the site and started a search action to trace out the kidnappers.Police said that investigations were underway and ,added, that it could be a case of kidnapping for ransom.A large number of students gathered at the airport after the incident and blocked the road demanding for immediate release of the kidnapped principal.In another similar incident, unidentified armed men kidnapped a local trader Nasrullah in Khuzdar, some 360 km southeast of Quetta and fled towards unspecified location.Police have registered cases of both the incidents and investigations were underway.Meanwhile, unknown armed men fired two rockets targeting PTCL Exchange in Mand area of Kech district. The rockets landed in isolated areas with a big bang. However, no loss of life and damage to property was reported in the attack.