Gunmen shot and killed seven labourers in south-western Pakistan in what is seen as another incident of ethnic terrorism, officials said on Sunday. The overnight attack took place in the Panjgur district of Balochistan province. Terrorists armed with automatic guns stormed a house under construction and killed seven sleeping workers. The victims were from the province of Punjab. “Seven labourers were killed on the spot and another was wounded in the firing,” the provincial police told media. No group has claimed responsibility for the latest attack so far. The Balochistan Liberation Army (BLA)…