Paul “Bonehead” Arthurs, rhythm guitarist and founding member of Oasis, has announced he will step away from part of the band’s ongoing reunion tour to undergo treatment for prostate cancer.

In a statement shared on Instagram, Arthurs said he had “responded really well” to earlier treatment this year, which allowed him to take part in the first leg of the tour. But he explained that he is now beginning another phase of care and will be absent from the group’s upcoming concerts in Seoul, Tokyo, Melbourne, and Sydney.

“I’m really sad to be missing these shows but I’m feeling good and will be back ready to go in time for South America,” he wrote. “Have an amazing time if you’re going this month and I’ll see you back onstage with the band in November.”

Oasis reposted Arthurs’ message, adding their own note: “Wishing you all the best with your treatment … we’ll see you back on stage in South America.” The band has not confirmed who will cover his parts during his absence.

Arthurs has faced health setbacks before. In 2022, he stepped away from performing with Liam Gallagher’s solo band after being diagnosed with tonsillar cancer. He later confirmed he was cancer-free following treatment and returned to music.

His latest diagnosis marks another interruption but, as in the past, Arthurs emphasized optimism and said he expects to rejoin the tour in November.

Oasis recently closed the U.K. portion of their reunion with two sold-out shows at Wembley Stadium, their first large-scale performances since the group’s split in 2009. The concerts were widely seen as a landmark in British music, marking the return of one of the country’s most influential bands.

The tour is scheduled to resume later this month in Asia and Australia, before moving on to South America. Arthurs is expected to return for the Buenos Aires concert on November 15, followed by shows in São Paulo and other cities.

News of Arthurs’ treatment prompted an outpouring of support from fans, many of whom praised his decision to be open about his diagnosis. Prostate cancer is one of the most common cancers among men, and public figures speaking about it are often credited with encouraging early detection and treatment.