COLIN Powell, the first black US secretary of state, has died at the age of 84.

The Republican politician died from complications of Covid-19, his family announced.

In an announcement on social media, the family said Powell had been fully vaccinated.

"We have lost a remarkable and loving husband, father and grandfather and a great American," the family wrote.

Powell was the first African American to serve as chairman of the joint chiefs of staff and secretary of state.

His reputation also suffered a painful setback when, in 2003, Mr Powell went before the UN Security Council and made the case for the war against Iraq.

He cited faulty information claiming Saddam Hussein had secretly stashed away weapons of mass destruction.

Iraq's claims that it had not represented "a web of lies", he told the world body.

Former US president George W Bush said he and former first lady Laura Bush were "deeply saddened" by Powell's death.

"He was a great public servant" and "widely respected at home and abroad," Bush said. "And most important, Colin was a family man and a friend.

"Laura and I send Alma and their children our sincere condolences as they remember the life of a great man."