GRAND RAPIDS (WZZM) - Consumers Energy is working to repair a power outage affecting areas of southeast Grand Rapids, Kentwood and Wyoming.

Morethan 3,800customers have lost power between Kalamazoo Ave. and US-131.

A spokesman for Consumers Energy says the problem began with a circuit at a substation around 3:00 a.m. Tuesday.

Workers do not know what caused the outage, or when power may be restored.