Police were placed on 
                        a high security alert on Sunday and searching for two 
                        suicide-bomber sisters out to launch strikes on government 
                        targets, police said. 
                        Police launched a huge hunt in the city for the two sisters 
                        aged between 18 and 20 years, following the disclosure 
                        by an arrested sectarian militant that they have been 
                        trained for suicide missions, police chief Tariq Jamil 
                        told AFP. 
                        
                        ‘There is high alert in the city due to July 4 (US 
                        Independence Day), and though there is no specific threat 
                        we have been alerted by a militant, Gul Hasan, during 
                        interrogation that two of his cousins trained as suicide 
                        bombers will strike any day,’ he said. 
                        
                        Security agencies have raided places in the outskirts 
                        of Karachi searching the two sisters, but so far have 
                        found no trace of them. Police and paramilitary rangers 
                        have been deployed throughout the city while the US consulate, 
                        diplomatic enclave, western missions, foreign fast-food 
                        restaurants and sensitive government sites are tightly 
                        guarded, Jamil said. Jamil confirmed that the US consul 
                        general residence’s official July 4 function has 
                        been postponed. 
                        
                        ‘The consulate officials have postponed the function 
                        on their own but we have no reports of any specific threat 
                        nor they have informed us,’ he said. 
                        Gul Hasan, of the banned Lashkar-e-Jhangvi, was arrested 
                        in connection with the two suicide bomb attacks on a Shia 
                        mosque in May in 50 people were killed. 
                        Gul Hasan told investigators that he had motivated his 
                        two female cousins to become suicide bombers. 
                        
                        ‘My senior members will give them the target, which 
                        could either be a Shia gathering of women, any police 
                        station or any official ceremony,’ Gul Hasan was 
                        quoted as telling his interrogators. ‘We have contacted 
                        their parents, who have confirmed that their daughters 
                        have been missing for the past five or six days, saying 
                        they were going on a noble cause,’ Jamil said.