ISLAMABAD: The US has linked sovereign immunity for ISI chief Ahmed Shuja Pasha in a lawsuit filed by relatives of victims of the Mumbai attacks in a Brooklyn court to the diplomatic immunity for an American arrested for the Lahore double murder, a media report said.The US administration “appears willing to claim sovereign immunity for the ISI chief in this case provided Pakistan also granted diplomatic immunity to Mr (Raymond) Davis, who is a CIA contractor ,” Dawn newspaper quoted unnamed sources as saying.“At one stage, the Americans were going to file papers in the court, stating that the ISI chief enjoyed sovereign immunity but decided not to do so after Mr Davis’ arrest,” an official source told the daily.The court in Brooklyn has accepted the petition against the ISI chief for the agency’s alleged involvement in the Mumbai attacks, the report said. The arrest of another alleged CIA operative in Peshawar for over-staying his visa has further annoyed the Americans, who pointed out that more than 100,000 Pakistanis were living in the US after the expiry of their visas, it said.The Americans seem willing to discuss Islamabad’s demand for sharing information on the CIA’s activities in Pakistan “provided the Pakistanis also shared relevant information ,” the source said.