“McCartney’s condition is not getting better as was expected. The concert may be canceled,” Yonhap quoted an unnamed concert management company’s official as saying.
The 71-year-old Beatles guitarist had been schedule to perform next Wednesday at the 20th Hyundai Card Super Concert in Seoul.
The company will make a decision later in the day whether to change the concert schedule, the official added.
Earlier this week, he canceled four concerts in Japan owing to a virus infection.