Comedian Milton Jones has revealed he has been diagnosed with prostate cancer and has cancelled a number of tour dates as he undergoes surgery.
The 60-year-old, who is known for his appearances on Mock the Week, said his cancer was treatable.
He added that a number of further tour dates would be rescheduled.
In an Instagram post, Jones said: "Thanks for your support and respecting my privacy during this time.
"This decision has not been taken lightly, trust me.
"Abnormal service will resume as soon as possible and I'm looking forward to being back out on the road again soon - though probably not on a bike!"
Jones said cancelling the shows was a "difficult decision".
The Londoner said he would be "undergoing surgery soon", adding that he would "need time afterwards to fully recover".
Olympic cyclist Chris Hoy, who has stage four cancer after his prostate cancer spread, was among those responding to Jones's post, saying: "Really sorry to hear it mate, best of luck."
Fellow comedian Al Murray said: "All the best Milton for a speedy recovery."
Announcing the cancellation, Jones said: "I'm so sorry about this but I need to announce the cancellation of several dates from my ongoing Ha!Milton Tour.
"Ticket holders for the cancelled shows will be contacted directly by the venue box office."
Jones said all of the dates currently planned for autumn would be unaffected.
Prostate cancer develops slowly, so there may be no signs for years, but signs may include an increased need to urinate, straining while urinating, and a feeling that the bladder has not fully emptied.
Jones's career has seen him perform on Live at the Apollo, Lee Mack's All Star Cast, and Michael McIntyre's Comedy Roadshow.
Source: Press Association