In Pakistan, the death toll in the riot hit port city of Karachi has risen to 48. Over 100 injured in the violence related incidents which sparked by the murder of a MQM provincial legislator. The violence began on Monday night after motorcycle-borne unidentified gunmen shot dead Syed Raza Haider, a senior leader of the Muttahida Qaumi Movement and a member of the Sindh assembly. His bodyguard also killed in the attack. A MQM worker, officials said that Haider had gone to a mosque to attend a funeral when he was attacked. The killing infuriated Mohjahirs, who form the majority in this city, as they forced downing of shutters and attacked establishments belonging to the Pushtans. There were reports of gunfire erupting in parts of the city. The protesters set on fire dozens of vehicles, petrol pumps, shops and houses on Tuesday as police and paramilitary forces struggled to gain control of the city. Meanwhile, Haider was buried as thousands attended the funeral prayers of the slain MQM leader. The violence affected several areas, including Baldia Town, Orangi Town, Gulistan-e-Johar, Landhi and Korangi. Interior Minister Rehman Malik said Haider had received threats from the Sipah-e-Sahaba, a banned anti-Shia group. He said the killing would be probed jointly by police and intelligence agencies. No group has claimed responsibility for Haider's killing. However, Mr Malik said the Sipah-e-Sahaba and Tehrik-e- Taliban Pakistan were behind the violence in Karachi that is aimed at destabilising the country. The MQM leadership has directly blamed the Awami National Party which represents the Pakhtoons for Haider's killing.