A gun-wielding man has taken his fellow factory workers hostage over outstanding dues owed by the owners in Karachi, Express News reported on Tuesday.Saleem Shehzad, the hostage taker, is said to have also threatened to carry out a suicide attack if his demands are not met. He has also made an appeal to the army chief and the chief justice of Pakistan to take notice of the situation.Shehzad, who works for a textile factory located on Super Highway, has taken the employees hostage in an attempt to get the firm to repay his outstanding dues.The hostage taker has claimed that if the authorities try to take him into custody he will blow himself up as he has a bag full of explosives.Shehzad claims that he was injured in a factory accident two months ago and the owner instead of paying for his treatment terminated his contract.He added that his fellow workers took the owners side instead of backing him up.The disgruntled worker also claimed that he had been working in the factory for nine months.Shehzad said that he has not been paid for the past two months and his sister's wedding is right around the corner.The factory staffers have called in the police to deal with the situation while Shehzad has released a video message listing his demands.Shehzad has taken 10 of his fellow workers hostage and has also demanded to talk to the army chief and the chief justice of Pakistan.