At least 36 people have died across seven states as powerful storm systems swept through the Midwest and South. The storms have left hundreds of thousands of customers without power, injured dozens in Arkansas and caused fatalities linked to wildfires in Oklahoma.

At least 37 people have died in a devastating cross-country storm this weekend as 40 tornadoes ripped through eight states in the South and Midwest, decimating homes, businesses and schools.

At least one person is dead after severe weather hit Butler County, Missouri on Friday night, officials said. There were previous reports of three deaths due to the storm, but Robert Myers with the Butler County Emergency Management Agency confirmed to ABC News that there was some miscommunication in the field and when comparing notes with the sheriff and coroner.