US Defence Secretary Lloyd Austin has resumed his official duties following a medical procedure, the Pentagon announced in Washington on Friday. Austin underwent a “successful, elective, and minimally invasive follow-up non-surgical procedure related to his bladder issue,” the Pentagon said. He had temporarily handed over his official duties to his deputy Kathleen Hicks due to the procedure, the Pentagon said. The surgery was not related to the 70-year-old’s cancer diagnosis, it added. Austin had returned home and no changes to his official schedule were anticipated. The White House and the US…