More than 880,000 customers were without electricity across the Midwest on Tuesday as severe storms swept through parts of the Midwest, triggering tornado warnings and reports of destructive winds.

According to PowerOutage.us, 880,232 customers were without power nationwide as of Tuesday afternoon, with Illinois, Indiana and Ohio accounting for the vast majority of outages.

The outages came as a powerful line of storms moved across the Great Lakes region, prompting tornado warnings and concerns about damaging winds capable of downing trees and power lines.

The severe weather disrupted electricity service for hundreds of thousands of homes and businesses and raised concerns about additional infrastructure damage as storms continued eastward.

Illinois reported 293,952 customers without power, followed by Indiana with 291,643 and Ohio with 178,820.

A tornado warning remained in effect Tuesday afternoon for parts of northern Indiana and southwestern Michigan, including Elkhart, St. Joseph, Kosciusko and Marshall counties in Indiana and Cass and Berrien counties in Michigan.

The National Weather Service (NWS) said a severe squall line capable of producing tornadoes and "extensive straight-line wind damage" was moving east at 60 mph.

Meteorologists warned of wind gusts exceeding 90 mph and radar-indicated rotation within the storm system. Communities in the warning area included South Bend, Elkhart, Mishawaka, Goshen, Warsaw, Niles, Benton Harbor and Plymouth.

The weather service warned that flying debris would be dangerous to anyone caught outdoors and said mobile homes could be damaged or destroyed. Officials urged residents to seek shelter immediately in basements or interior rooms on the lowest floor of sturdy buildings.

This is a breaking news story. Updates to come.