A memorial stone commemorating Joy Division singer Ian Curtis, who committed suicide in May 1980, has been stolen from a Cheshire, England, cemetery, according to The Telegraph UK news site.

Associates of the singer have speculated the stone was taken by a fan as "sick souvenir." Authorities, however, have no apparent leads in the case. A borough council spokesperson told the newspaper he hopes a public appeal will inspire the thief either to return the memorial to the cemetery or leave it at the nearest police station.