KARACHI The law-enforcement agencies Thursday arrested 291 ordinary citizens from different areas of Karachi in connection with the latest target-killings while Sindh Home Minister Zulfiqar Mirza formed a committee to probe into the matter and empowered Rangers to raid, search and arrest the suspects. Mirza flanked by the IGP, CCPO and other top police officers briefed the media about the measures being taken to stop the killings. The minister announced the formation of a special committee to address the issue and said the concerned officials had been directed to take all possible steps against the elements sabotaging peace in the City, and enhance snap checking at all the entry points. Mirza said the killings were part of a conspiracy hatched by the elements who wanted to destabilise the government. Mirza informed journalists about the arrest of nearly 300 persons in the crackdown launched by the law-enforcing agencies. According to the notification issued regarding the powers designated to the Rangers , the powers will stand valid for one month. The notification has also directed the police and Rangers to develop the understanding for joint operation against the culprits. Meanwhile, the death toll in two days of violence has reached 28, as six more people, including a cop, were gunned down on Thursday. Attackers killed two young men in Abbas Town. The bodies of the victims, identified as Nasir Ali and Rashid, were shifted to Jinnah Postgraduate Medical Centre (JPMC) for autopsy and later handed over to the heirs. One of the deceased hailed from Gilgit while the other belonged to southern Punjab. Sajid Karim, an MQM sympathiser, was gunned down near Powerhouse Graveyard Block-22 Federal B area. Police said Sajids brother was an activist of MQM. Violence also claimed the life of a police constable, Asadullah, of Garden Police Station. In Orangi Town No-5, two armed bike riders shot dead Bakhti Mohammad), who, according to the police, had no links with any political party. An unknown bullet-riddled body was found in Surjani Town. Meanwhile, the provincial capital, also the economic lifeline of the country, remained tense as various areas echoed with intermittent fire and people continued to stage protests against the killings. Rioting was reported from Orangi Town, Qasba Colony, Quaidabad, Banaras, Sohrab Goth, Abul Hassan Isphahani Road, Malir, Landhi, Saddar and Sultanabad. Sultanabad, with an overwhelming majority of Pashtu speakers, remained tense where scores of ANP workers staged protest and blocked the MT Khan Road. Some of them also resorted to firing and pelted stones on vehicles. Heavy contingents of law enforcers rushed to the spot to control the situation, which resulted in clashes between the protesters and the police and the Rangers . The law enforcers had to use aerial fire and teargas shelling to disperse the crowd. On the other hand, residents of Orangi Town, Qasba Colony and adjacent areas got stuck in their respective localities and avoided crossing the Banaras area.