"It knocked me to my knees one time".
People walk amid debris in Lee County.
"We are heartbroken for the people who have lost loved ones today. We will stand together and get through this together".
The National Weather Centre had issued a tornado warning for areas including Lee County earlier on Sunday, calling on residents to: "TAKE COVER NOW!"
He said it's possible the death toll could continue to rise, but authorities paused search efforts overnight because conditions are too unsafe in the dark due to massive amounts of debris. Harris didn't give other details about them.
The death toll in Alabama may rise, officials said, as search, rescue and recovery efforts continues. "We've never had a mass fatality situation, that I can remember, like this in my lifetime", Harris said.
Authorities believe the death toll will rise. "But I want to offer the caveat that we have not completed our searches".
The outbreak of tornadoes was America's worst in six years, according to The Washington Post.
The National Weather Service said one and possibly two tornadoes struck the area, with a powerful EF-4 twister with winds estimated at 170 miles per hour (274 kph) blamed for most of the destruction. He said officials on both sides of the state line are surveying the severe storm's damage.
Authorities in southwest Georgia were searching door-to-door in darkened neighborhoods after a possible tornado touched down in the rural city of Cairo, about 33 miles north of Tallahassee, Florida, on Sunday evening. There was another likely twister reported in the county, he said.
Shortly after that, a separate storm caused damage in Peach and Crawford counties, just west of Macon.
In Beauregard, Dax Leandro was helping clean up his buddy's mom's property Monday. "There was a mobile home frame in the middle of the road at one time".
The debris field was hundreds of yards long. Tornado warnings and watches were in effect for parts of Georgia and Alabama through Sunday evening.
The tornado is the deadliest since 2013, when an EF5 tornado killed 24 people in Moore, Oklahoma.
"It's just devastating to see this", Morrison said. It is the first EF4 or stronger tornado in the United States in almost two years; the last EF4 touched down in Canton, Texas, April 29, 2017.
The Sunday afternoon tornado through Lee County left a half-mile wide swath of devastation.
Trump says Alabama Gov. Kay Ivey has also been informed and is working closely with FEMA and with him.
Lee County Sheriff Jay Jones told media outlets Sunday that at least 14 deaths had been confirmed in the county and some others are reported missing.
The deadly tornadoes were part of a violent storm system that swept through the Southeast.
"We are trying to see if we can locate any injured people", Jones said.
Search operations for those still missing were halted on Sunday night due to hazardous conditions, but Jones added they would resume on Monday morning. The community has a few small stores, two schools and a volunteer fire department dotting the main highway that runs through town.