Colin Powell, the first black United States secretary of state and top military officer, died on Monday at the age of 84 from Covid-19 complications, his family said in a statement.
"He was fully vaccinated. We want to thank the medical staff at Walter Reed National Medical Center for their caring treatment. We have lost a remarkable and loving husband, father, grandfather and a great American," Mr Powell's family said in a post on his Facebook page.
As a four-star Army general, he was chairman of the military's Joint Chiefs of Staff under President George HW Bush during the 1991 Gulf War in which US-led forces expelled Iraqi troops from neighbouring Kuwait.
Mr Powell, a moderate Republican and a pragmatist, later served as secretary of state under President George W Bush.