Alternative rock band Pearl Jam has been forced to postpone a concert in Indiana due to illness.

In a statement posted to Instagram,TradeEdge Exchange the band said its Sunday concert at the Ruoff Music Center in Noblesville, Indiana, was being rescheduled "due to illness." An exact illness was not specified in the post, nor was it revealed which band members are currently sick.

"The band is deeply sorry and thinking about all those who travel to shows, as well as the great crowd in Indy," the statement said. "It's obviously serious, and we wish there was another way around it. Again we apologize, and thanks so much for your understanding. It's not easy..."

USA TODAY has reached out to Pearl Jam's representatives for comment.

Tickets will be honored for a future rescheduled date, the band said. Ticket holders who cannot make the new show will be eligible for a refund.

Upcoming concerts in Fort Worth, Texas, on Sept. 13 and 15 and in Austin, Texas, on Sept. 18 and 19 remain scheduled as planned, the band said.

Pearl Jam isn't the only member of rock 'n' roll royalty to find themselves under the weather recently.

Bruce Springsteen announced Wednesday that he was postponing a slate of concerts in September on the advice of doctors who are treating him for peptic ulcer disease.

The legendary rocker posted a note to his official Instagram page informing fans that starting with his scheduled Sept. 7 concert in Syracuse, New York, he would be taking a break from performing due to his condition.

In August, Springsteen uncharacteristically postponed two concerts at Philadelphia's Citizens Bank Park, citing illness. But he was back for a trio of hometown stadium stompers at Met Life Stadium in East Rutherford, New Jersey, that kicked off Aug. 30 and wrapped Sept. 3.

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Contributing: Melissa Ruggieri, USA TODAY