Prime Minister Nawaz Sharif has said the Karachi operation should continue at all costs till the restoration of peace in the city.He gave the directives to the Interior Minister Chaudhry Nisar Ali Khan who briefed him about the Karachi operation in Islamabad Thursday.The Interior Minister apprised the premier of the arrests and the successful operations carried out by law enforcement agencies against criminals in order to rid the city of the menace of lawlessness and ensure enduring peace.The prime minister was told that the ‘Karachi operation’ had entered its third phase and new areas in the metropolis had been identified.Nawaz Sharif expressed satisfaction over raids on criminals and said it should be continued until complete peace and tranquility were restored in the city.Separately, the interior minister briefed the Prime Minister on talks with militant organisation Tehrik-i-Taliban Pakistan (TTP).The federal cabinet had earlier empowered Rangers to lead a targeted operation in the city with the support of police against criminals already identified by federal military and civilian agencies in hundreds of lists for their alleged involvement in targeted killings, kidnappings for ransom, extortion and terrorism.Karachi is home to multiple conflicts that frequently turn violent, including gang wars and ethnic and political rivalries. Militants are said to use the city as a hiding place and a source of funds obtained through bank heists, extortion and kidnapping for ransom.