Approximately 4,500 Ameren Illinois customers in the Alton and Godfrey area were without power for several hours Saturday afternoon due to a mechanical failure at a substation. Ameren Illinois Spokesperson Marcelyn Love says a breaker at that substation failed for an unknown reason just after 2 p.m. She says power was restored to customers in two phases.

Service was restored to 2,350 customers at 4:30 p.m. and the remaining customers had their power restored at 5:30 p.m.

(Copyright WBGZ Radio / www.AltonDailyNews.com)