SIOUX CITY, Iowa (AP) — Residents in northwestern Iowa are cleaning up after heavy rain and strong winds downed power lines and tree limbs and knocked out electricity to thousands overnight. MidAmerican Energy says up to 13,000 customers were left without power in the Sioux City area when the storm moved through Friday night.

The utility says power was restored to about 8,000 customers by early Saturday morning. The storms also caused the partial collapse of a stage Friday night at the RiseFest Christian Music Festival in Sheldon. No injuries were reported, and festival organizers had already evacuated the area around 7 p.m. Friday because of strong wind and lighting.