A large number of businesses and residents in Alton spent much of Saturday afternoon without power. Ameren Illinois reports that an issue at a substation on North Alby Street caused the issue, which cut off power to those impacted just before 4 p.m. During the height of the outage, Ameren's outage website showed nearly 4,000 customers without power in Madison County, with a large percentage of those in the North Alton area. As of this morning, service had been restored to all impacted customers in Madison County.

(Copyright WBGZ Radio / www.AltonDailyNews.com)