SIOUX CITY | An underground equipment failure caused a power outage on Sioux City's northside Tuesday morning. 

Adam Jacobi, a public relations representative with MidAmerican energy, said 253 customers were affected by the outage at the 3100 block of Glen Oaks Blvd.

The outage was reported at 11:07 a.m. Crews began working on repairs immediately. 

Power was restored to all affected customers by 11:58 a.m., Jacobi said.