The 80-year-old civil rights leader was attending a town meeting with Howard University President Wayne A.I. Frederick.
His wife has been transferred to ICU after her COVID-19 hospitalization.
The 79-year-old civil rights leader was vaccinated in January, and had encouraged other elderly people to get their shots.
The film marking the 50th anniversary of Dr. King’s assassination will air on the Paramount Network and BET on Wednesday.
The 76-year-old civil rights activist shared the news on social media on Friday.