Tonight's Slipknot concert at the Toyota Center has been postponed because one of the band members is ill, said Rick Capello, ticket office manager.

All tickets that have been purchased will be honored, he said, and a new show time should be announced in the coming week.

Set up already was under way when Capello found out about the cancellation, he said, adding there was a "good crowd" that had already bought tickets.

Saturday's show in Seattle also was canceled, according to the group's website, which says band member Joey Jordison was taken to the hospital for health reasons.