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(FILES) In this file photo taken on June 28, 2019 British singer Sting performs on stage during the opening day of the 53th edition of Montreux Jazz Festival. British singer Sting cancelled a slew of concerts in Europe on July 10, 2019, blaming an unspecified illness for keeping him off the stage since the beginning of the week. Hours after calling off an appearance in Munich, Germany slated for on July 10, 2019 evening, the former Police frontman's website said shows in another German city Stuttgart as well as Slavkov u Brna in the Czech Republic scheduled for July 11 and July 12 would also not go ahead. - RESTRICTED TO EDITORIAL USE / AFP / FABRICE COFFRINI / RESTRICTED TO EDITORIAL USE Image Credit: AFP

British singer Sting cancelled a slew of concerts in Europe on Wednesday, blaming an unspecified illness for keeping him off the stage since the beginning of the week.

Hours after calling off an appearance in Munich, Germany slated for Wednesday evening, the former Police frontman’s website said shows in another German city Stuttgart as well as Slavkov u Brna in the Czech Republic scheduled for Thursday and Friday would also not go ahead.

“It is with great regret that Sting’s concerts ... will be cancelled,” the statement read.

“Sting is under the weather and under doctor’s orders,” it continued, saying he was “forced” not to take to the stage.

“Sting sincerely regrets disappointing or causing any inconvenience to the fans” and will be offering refunds to the disappointed concertgoers.

The string of cancellations for 67-year-old Sting, who has more than 100 million album sales to his name, began when he called off a Monday appearance at a jazz festival in Ghent, Belgium.

So far he has not revealed what illness prompted him to send out an SOS.

The former teacher was the face of the massively successful Police before launching a solo career in 1985.

He has also thrown his star power behind activist causes like freeing Nelson Mandela or protecting the Amazon rainforest.

Sting is also well-known as a keen yoga practitioner.