In addition to crashes that damaged or ended the careers of drivers, three spectators were killed in a 1998 CART racing incident. The 1998 U.S. 500 Presented by Toyota was marred by a crash on lap 175. Adrián Fernández slammed into the outside wall in the fourth turn. His right front wheel was torn off and hurled over the fence into the stands, killing three spectators (Kenneth Fox, Sheryl Laster, and Michael Tautkus) and injuring six others. Despite improvements made to the catch fencing, subsequent attendance declined greatly over the next few years.