1,600 Consumers Energy customers in Grand Rapids were without power Wednesday morning.

Senior Public Information Director Roger Morgenstern said the outage was due to a 46,000 volt line that went out service in the downtown area on Nov. 23.

The company says all power was restored by 9:19 a.m., about an hour after it went out.

Several businesses were closed due to the outage.

What caused the volt line to go out of service remains under investigation.