Aerosmith guitarist Joe Perry says he doesn't know if the band will keep its current tour going because of injuries lead singer Steven Tyler suffered after falling off a stage.

Tyler tumbled Wednesday while performing during the Sturgis Motorcycle Rally in western South Dakota.

Perry gave in in-studio interview at WXRX-FM in Rockford, Ill., Friday morning on his way back home to Boston.

Perry didn't mention anything specific about Tyler's condition or say where Tyler was. The rock legend suffered head and shoulder injuries in the fall.

The band's next concert was scheduled for Friday in Winnipeg, Manitoba, but was postponed. The band's Web site doesn't mention any other cancelations and calls for comment have gone unanswered.