Linkin Park vocalist Chester Bennington was hospitalized Friday in Los Angeles, for an "attack of severe back and abdominal pains," according to a post today (June 3) on the band's official <A HREF="h

Linkin Park vocalist Chester Bennington was hospitalized Friday in Los Angeles for an "attack of severe back and abdominal pains," according to a post today (June 3) on the band's official Web site. Due to the injury, 12 European tour dates have been cancelled, beginning with a June 7 performance in Germany. The post states that "Bennington remains hospitalized as doctors are still trying to determine the cause of these ailments."

The Warner Bros. act is slated to embark on the Summer Sanitarium tour July 4 with Metallica, Limp Bizkit, and the Deftones. A label spokesperson was unavailable for comment as to whether or not the hospitalization will affect the U.S. package tour.

It was unknown when or if the band would make up the affected dates. The group was due to appear at a number of European festivals throughout the month of June, including Holland's Pinkpop Festival, Sweden's Hultsfred Festival, Spain's Doctor Music Festival, and Norway's Norwegian Wood Festival. Linkin Park's brief European tour was scheduled to wrap June 22 in Lisbon, Portugal.

Linkin Park is touring in support of its sophomore effort "Meteora," which has sold 1.9 million copies in the U.S. since its March 25 release, according to Nielsen SoundScan. The album is currently at No. 13 on The Billboard 200.