5 p.m. - MidAmerican Energy says about 35 customers are without power
4:43 p.m. - MidAmerican Energy says about 2,000 customers are still without power in the Council Bluffs area. They expected power to be restored around 6 p.m.
MidAmerican Energy says a problem at a substation is to blame for a power outage affecting about 6,500 customers.
The power company says power should be restored by about 4 p.m.
The city says the Council Bluffs Public Library has closed early because of the outage. The Council Bluffs Area chamber of commerce says the chamber and surrounding businesses are also impacted.