QUETTA - Eight coal mine workers were killed and two other fell unconscious after toxic gas spread in a coalmine in Dukki tehsil of District Loralai, on Monday morning.According to sources, around 10 coal mine workers were busy in extracting coal in Akbar Nasir coalmine in Qudrati area when the mine filled with poisonous gas. Resultantly, eight coal miners were killed and two fell unconscious. Following the incident, rescue workers rushed into the mine and started retrieving the victims.The deceased were identified as Mehrab Khan, Siraj Akbar, Khan Zamin, Shakir, Hazrat Ali, Hakumran, Samiullah and Bhakt Zaman. All the victims belong to Tehsil Puren of Shangla in Kyber Pakhtunkhwa.Chief Inspector Mines Iftikhar Ahmed told this scribe that all bodies and workers fell unconscious had been retrieved from the mine and the condition of two workers was out of danger. “Investigation has been ordered into the incident however, according to initial investigation report the mine filled with methane gas,” he added.The National Labour Federation President Abdul Rahim Dad Khel condemned the incident and said the government and companies of coalmine did not pay heed towards mines that cause tragic incidents. “There is no safety measures for the coalminers,” he said, adding, it was the duty of the Chief Inspector of Mines and Secretary Mines and Mineral to check all coalmines before allowing workers from extracting mine.It may be recalled here that due to lack of industries in Balochistan, coal mining is a big sector and more than 60,000 workers affiliated with this sector.Separately, two employees of a cement factory were wounded on Monday in a hand grenade attack in Hub, an industrial town of Balochistan, while a man was killed in Quetta.According to police, the workers of a cement factory were returning home when unidentified armed men hurled a hand grenade on them near Sakran Road. Resultantly, two workers who were travelling in a vehicle were wounded. Also, the Frontier Corps rounded up 66 outlaws and recovered huge cache of explosive material in various targeted operations throughout Balochistan, including Quetta.