ISLAMABAD: The PTI has challenged notices sent by the Federal Investigation Agency (FIA) to its leadership over a controversial post on the official account of former prime minister Imran Khan. Separately, a joint investigation team (JIT) from Lahore visited Adiala Jail on Tuesday to interrogate former foreign minister Shah Mehmood Qureshi regarding the May 9 violence cases registered against him. The notices issued to PTI leaders …