KARACHI - A man was injured on Friday while at least three vehicles were set on fire when armed men threw a hand grenade at the parking zone of the Chase Departmental Store in Gulshan-e-Iqbal locality. The departmental store is situated near the NIPA Chowrangi in Gulshan-e-Iqbal within the precincts of Aziz Bhatti police station. Upon being alerted on the information, a heavy contingent of Rangers and police reached the site while the bomb disposal squad was also called. Police said that three vehicles were partially damaged and two men riding a motorcycle were behind the incident, who managed to escape after throwing a hand grenade. They said that the culprits threw a grenade after shopkeepers refused to pay them extortion money. Meanwhile, MQM coordination committee has deplored the killings of two sympathizers of Unit 32 of the Lyari Sector by the criminals and terrorists of the gang war and termed it flagrant terrorism. Muhammad Zahid and Muhammad Jabbar were gunned down on Badshahi road in Lyari area. It lamented the brutal killings of innocent persons in the holy month of Ramadan and said that the killers of the gang war were open enemies of Islam and humanity. The Co-ordination Committee said that the high incidence of extortion, bloodshed, and kidnapping for ransom in the city by the criminals of the gang war was a cause of great concern. Killings of Muhammad Jabbar and Muhammad Zahid were also a part of the same and highly condemnable.The Co-ordination Committee sympathized with the grieving family members of the deceased persons. It also prayed Almighty Allah to rest the departed souls in eternal peace.The Co-ordination Committee demanded of President Asif Zardari, Prime Minister Raja Pervaiz Ashraf, Advisor on Interior Affairs Mr Rehman Malik, Governor Sindh Dr Ishrat-ul-Ebad and Chief Minister Sindh Syed Qaim Ali Shah to take notice of the killings of Muhammad Jabbar and Muhammad Zahid. It demanded arrest of the elements involved in the killings of workers and sympathizers of the MQM so that justice should be done on them.