ISLAMABAD: An Islamabad accountability court on Tuesday acquitted former prime minister Nawaz Sharif’s sons — Hussain Nawaz and Hassan Nawaz — in three corruption references related to the Panama Papers. In 2018, Nawaz’s sons were declared proclaimed offenders after they failed to join the investigation in Avenfield Apartment, Al-Azizia and Flagship Investment references filed by the National Accountability Bureau (NAB). Earlier this month, Hussain and Hassan, …