YEREVAN, MAY 27, ARMENPRESS. Zbigniew Brzezinski, President Jimmy Carter's national security adviser, has died aged 89, BBC reports.

Mr Brzezinski "passed away peacefully" in Virginia on Friday evening, his daughter Mika said on social media.

President Carter paid tribute to him as a "superb public servant".

After leaving office, Mr Brzenzinski worked as an author and academic into his 80s, endorsing Barack Obama and becoming a vocal critic of his successor, President Donald Trump.

One of his last tweets, sent in February, dryly noted: "Do we even have a foreign policy right now?"

The "inquisitive and innovative" son of a Polish diplomat, Mr Brzezinski was a "natural choice" as national security adviser, Mr Carter said in his tribute. "He was brilliant, dedicated, and loyal, and remained a close adviser to my work at The Carter Center. I will miss him."

He also taught American foreign policy at Johns Hopkins University.