Severe weather and tornadoes are being blamed for five deaths as storms swept across the South overnight Wednesday and throughout Thursday.

One person was killed and another injured when two mobile homes were destroyed in in Marengo County, Alabama, by an EF1 tornado.

In York County, South Carolina, a tree fell on a car, killing a man inside, shortly after noon on Thursday.

A 36-year-old Tennessee teacher, Brooke Sampson, was killed when a tree fell on a city van in Sevierville. Four others were injured in the accident, according to WTVC. In Knoxville, Tennessee, one person was killed and two others injured when a car hydroplaned and hit a truck.

A man later identified as Terry Roger Fisher was killed in Gaston County, North Carolina, in another hydroplaning incident which sent his pickup truck into a 25-foot embankment and flipping into a creek.

As of Friday morning, more than 300,000 customers were without electricity from Florida to Pennsylvania, according to poweroutage.us. Nearly half of those outages were in North Carolina.

A state of emergency was declared for the state of Virginia Thursday evening as severe storms and flooding continued. More than 500 people were displaced due to flooding in Virginia's Tazewell County, Gov. Ralph Northam said in a press release. Several roads were also closed or washed out in the southwest portion of the state.

A possible tornado caused damage and at least one injury near Tampa Bay, Florida. Several mobile homes were damaged in Pinellas county, and seven people were trapped when a tree fell on a home in Seminole, according to Bay News 9. One person was hospitalized with minor injuries.

Several southern states have been affected by severe flooding over the past two days, including the Carolinas, Kentucky, Tennessee and Alabama. The flooding has sparked water rescues and evacuations.

(MORE: Carolinas, Tennessee Slammed by Wind, Flooding)

A confirmed EF-0 tornado left behind downed trees and damaged roofs near Helena, Alabama, early Thursday.

Photos show significant damage to mobile homes in Pickens, Mississippi Thursday, and possible tornadoes and structural damage were reported in Simpson County.

Click through the slideshow above to see how the Deep South is dealing with today's severe weather.