Mumford and Sons had to cancel shows that were scheduled to take place tonight, June 15, and June 16 because of frontman Marcus Mumford breaking his hand. They were set to appear at the Northside Festival in Denmark and the Hultsfred Festival in Sweden.

Mumford and Sons broke the news on their official website. However, no explanation for the injury was given.

"With regret, Mumford and Sons have been forced to cancel their upcoming festival appearances in Denmark and Sweden due to a broken hand sustained by Marcus Mumford," the folk rockers said in a statement on their site. "The band were due to perform at Northside Festival in Denmark on Friday 15 June and Hultsfred Festival in Sweden on Saturday 16 June, but the accident, which occurred at the weekend, regrettably means that they will no longer be able to play."

Mumford and Sons continued to say that no other shows would be affected by their singer's injury. That's good news for American fans who plan to attend their Gentlemen of the Road Stopovers in August. The one day festivals will launch in Portland, Maine on August 4 and go through August 25 in Monterey, Calif.