AP, Quetta, Pakistan :Gunmen have killed 20 construction workers in Pakistan’s restive southwestern province of Baluchistan, shooting them at point blank range after identifying they were not local, officials said today.Baluchistan is plagued by violence, with separatists seeking greater control over the province’s rich oil, gas and mineral resources, and gunmen have previously targeted outsiders seen as settlers.The Baluch Liberation Front (BLF), an armed group that wants the province to be “liberated” from the rest of Pakistan, claimed responsibility for the incident.”Gunmen stormed the camp of labourers in Gokh Don area of Baluchistan late Friday night and killed 20 labourers,” senior police official Tariq Khilji told AFP.