Bruce Springsteen performs with the E. Street Band during a tour to promote their latest album Working on a Dream, at Zorrilla stadium in Valladolid August 1, 2009. REUTERS/Felix Ordonez

Bruce Springsteen canceled a performance in Kansas City on Monday after the death of his cousin who was the assistant road manager of the E Street Band.

The death of Lenny Sullivan, 36, who had been with the band for 10 years, was announced in a statement on the U.S. rock star's website.

A warm and sensitive person, he was beloved by Bruce, the band, the crew, and the entire Thrill Hill family, said the statement.

Celebrity website TMZ reported that Sullivan was found in his room at a local hotel on Monday afternoon. It said police were investigating the death although it was not being treated as suspicious.

The statement said all tickets would be refunded at the point of purchase and thanked the audience for understanding.

Springsteen, 60, who recently released his 24th album, embarked on a 47-date Working On A Dream global tour in April in California.