KARACHI Another seven people lost their lives on Saturday in the current wave of violence that began on Wednesday, bringing the death toll in just four days to 80. The government is struggling for solutions to the worst kind of unrest to sweep the city in 16 years as extra deployments of police and paramilitary officers appear unable to end the trouble. On Saturday, an Air Force employee, Zafar Ali Nazir, was shot dead near Mona Dental Clinic, Khokharapar. Police said the 36-year-old deceased came to Karachi from Nawabshah to visit his sister residing in Fasial Base. In another incident gunmen intercepted a bus near Malang Hotel, Bakrapiri, in the remits of SITE-A Police and disembarked Nadeem Harron, 28, and shot him dead. Police said Nadeem was a resident of Sector 1-C, Orangi Town. Unidentified gunmen also killed Sakhi Dad, a driver of a route Z bus, near Daba Chock, Islam Nagar, Orangi Town. In the limits of Joharabad Police, armed men shot dead a man a near Hussainabad, Block 14. Deceased 30 years old Gull Aallam was a resident of Block 10, a slum area. Mochko Police found a bullet-riddled body near the route N-5 bus stop. One more unidentified body was found from Qalandriya Chock, Shahrah-e-Noorjahan. Ibrahim, an injured of Chakra Goth ethnic violence, succumbed to his injures. He was wounded late Friday. In Orangi Town an ambulance was attacked by unknown men, leaving three persons wounded. Police high ups claimed of arresting two attackers involved in the attack on police van in Chakra Goth, Korangi. But sources said that the injured men, who are affiliated with Muttahida Qaumi Movement (MQM), were detained during treatment at JPMC and they had been admitted to the hospital an hour before the incident of police van attack. The current wave of violence started from Lyari on Wednesday after the arrival of mutilated bodies of five men who were abducted, and spread out across the metropolis like a wildfire. Medico legal officers in three major hospitals of Karachi while describing the brutality said that the victims were drilled multiple times, burnt and then their heads were chopped down. The affected areas included Saeedabad, Balida, Korangi, Orangi, New Karachi and Landhi. Markets in the downtown remained closed on the fifth consecutive day because of the precarious law and order situation.