PTI: At least 11 people, including two policemen, were killed Tuesday in fresh wave of violence and killings in Pakistan's financial hub. Six people were killed this evening in the space of an hour again raising concerns over the deteriorating law and order situation in Karachi.        

"Two policemen, who were on duty in a mobile in Hyderi, Nazimabad were killed when armed men opened fire on the mobile this evening," Senior Superintendent of Police Imran Shaukat said.        

In another incident, gunmen on motorcycles opened fire on a father and son killing them on spot. "The father Murtaza, 40, and his 10-year-old son, Mustafa died on the spot and they belonged to the Bohri community," Shaukat said         He said seven others were killed target killings in the Lyari Chakiwara area, Ranchore Lines, Gulistan-e-Jauhar, Landhi, Metroville and Orangi town areas.        

The city had witnessed a brief lull in the violence and killings after Prime Minister Nawaz Sharif visited Karachi to review the law and order situation last week and also chaired a special meeting of the federal cabinet in which several decisions were taken to clean up the city.