Dennis Sheehan, U2's longtime tour manager, was found dead in his hotel room in Los Angeles, it has been confirmed. Sheehan was staying in the Sunset Marquis hotel in West Hollywood, California. Paramedics were called around 5:30 a.m. Wednesday to treat a person for a reported cardiac arrest. Sheehan was pronounced dead at the scene, Los Angeles County Fire Inspector Chris Reade told the Associated Press.

"We've lost a family member, we're still taking it in," U2 frontman Bono said in a statement on the band's website. He said Sheehan was not “just a legend in the music business, he was a legend in our band,” and added that Sheehan was “irreplaceable."

Arthur Fogel, head of the band's touring management, also expressed his sadness, calling Sheehan a “dear friend” and that his “heartfelt sympathy is with his wonderful family.” Sheehan had worked for U2 for more than three decades and was also associated with Lou Reed, Led Zeppelin, Iggy Pop and Patti Smith.

Sheehan's death came just a few hours after U2 kicked off a series of shows in the Los Angeles area. But Live Nation, the promoters of the tour, told AP that Sheehan's death will not hamper the tour schedule and the tour will go on in his memory. "Dennis always got the band on stage, pretty much on time. We're going to make sure we do that tonight, in his memory," Live Nation's Arthur Fogel told the news agency. "It is absolutely what he would have wanted."

The Irish rock band kicked off its "Innocence & Experience" tour at the Forum in Inglewood, California, on Tuesday and has four performances lined up in the Los Angeles area. The Irish quartet began its tour earlier this month in Vancouver. The band's latest album, "Songs of Innocence," was given for free on iTunes by Apple and also got nominated for best rock album at the 2015 Grammy Awards.