(CBS/AP) Grammy-winning folk musician Doc Watson remains in critical condition at a North Carolina hospital after undergoing colon surgery last week.
Folklore Productions, the company that represents Watson, posted the update on Monday: "No real change today. Doc remains in critical condition at Wake Forest Baptist Medical Center in Winston-Salem."
On Sunday, Folklore revealed, "The Doc had a difficult day, but seems to have pulled through OK. His condition is now pretty much where it was when the day began. He remains in critical condition."
The 89-year-old Watson's daughter, Nancy, said that the musician also fell recently.
The blind singer/guitarist has won several Grammys, including a lifetime achievement award. He also received the National Medal of the Arts.
Watson is known as a master of the flatpicking style of guitar playing. He also started Merlefest, an annual gathering of musicians in Wilkesboro named after his son, who died in a tractor accident in 1985.