Four workers of the Frontier Works Organisation (FWO) were killed in a target killing attack in Mir Ali tehsil (revenue unit) of North Waziristan District in Khyber Pakhtunkhwa on November 26, reports Dawn. District Police Officer Shafiullah Khan said that unidentified attackers opened fire on a vehicle in Mir Ali, leaving four persons dead on the spot. He said that the slain men were workers of the FWO, a military engineering and construction company. The dead included Zafar Abbas belonging to Dera Ismail Khan, Abid Mahmood from Abbottabad, Ahmad Saeed hailing from Gujranwala (Punjab) and Noor Faraz, resident of Mir Ali.