Legendary Marvel Comics creator and publisherhas been hospitalized, a spokesman confirmed to CBS News.
TMZ was first to report that the 95 year old had fallen ill.
TMZ cites sources as saying Lee was rushed to Cedars-Sinai Medical Center in Los Angeles form his home Wednesday night after suffering shortness of breath and an irregular heartbeat.
A spokesperson for Lee told CBS News, "Stan is doing well and feeling good, he is staying there for a few days for some checkups as a safety precaution."
Lee was profiled two years ago on the CBS News broadcast "Sunday Morning."
Among other achievements, Lee co-created Spider-Man, X-Men, Iron Man, the Hulk and Black Panther.
When he turned 95 in December, stars of popular Marvel movies and TV shows, such as "The Avengers," wished him a happy birthday on social media.