Bono receives an international humanitarian award from the Atlantic Council during their annual awards dinner in Washington, Wednesday, April 28, 2010. (AP)
Bono had emergency back surgery after sustaining an injury during preparation for the band's upcoming tour.
"Bono has today undergone emergency back surgery for an injury sustained during tour preparation training," the band's rep said in a statement. "He was admitted to a specialist neurosurgery unit in a Munich hospital. Bono will spend the next few days there, before returning home to recuperate. Once his condition has been assessed further, a statement will be made regarding the impact on forthcoming tour dates."
U2 had been scheduled set to resume their "360 Degree" on June 3 in Salt Lake City, Utah.
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