( CNN ) -- A tornado zeroed in Monday afternoon on a manufacturing plant in southwestern Kentucky , tossing pieces of the roof , collapsing part of the aluminum structure and injuring seven people , officials said . Elsewhere in the South , possible tornadoes and thunderstorms caused damage , injuries and power failures . Tornado watches were in effect Monday night in portions of Louisiana , Mississippi , northwestern Florida , most of Alabama and northern Georgia , including Atlanta . Severe thunderstorms were moving through and flood warnings were issued in some areas . About 184 employees were inside TGASK , a plant that makes automotive parts , when the storm arrived shortly after 1 p.m. , said Paul Ray , spokesman for the Hopkinsville Police Department . None of the injured had life-threatening injuries , said spokeswoman Jessica Beckham of Jennie Stuart Medical Center . Ray said the injuries were mostly bumps and bruises . The manufacturing plant is between Hopkinsville and Pembroke . `` It could have been a lot worse , '' Ray told CNN . The plant was `` very fortunate that at that time , there were very few injuries , and only minor injuries . '' All employees had been accounted for , he added . The Kentucky Division of Emergency Management said possible tornadoes struck near La Center in Ballard County , with injuries being reported . One injury was reported from a storm that hit a mobile home park in Greenville , Kentucky , said Police Chief Darren Harvey . A likely tornado touched down two miles south of Georgetown in Grant Parish , Louisiana , on Monday afternoon , the Grant Parish Sheriff 's Office said . There were reports of widespread damage in the community of Selma . Numerous trees and power lines were down across the area , the Sheriff 's Office said . Officials in Arkansas reported at least three injuries from fast-moving storms . More than 58,000 customers were without power in Tennessee , according to Nashville Electric Service . Three possible tornadoes were reported in western Tennessee , the National Weather Service said . Storms also struck Humphreys County in Tennessee , about 60 miles west of Nashville , according to authorities . `` We were hit hard in our downtown area , '' said Waverly City Manager Buddy Frazier . Although no injuries were reported , trees , power lines , roofs and structures were down , Frazier told CNN . A dispatcher said a communications tower was down in Humphreys County , but workers were still able to send and receive messages . CNN 's Sean Morris , Chuck Johnston , Aaron Cooper , Dave Alsup and Jackie Castillo contributed to this report .
NEW : Tornado watches in effect in large swath of Deep South , including Atlanta . NEW : Three possible tornadoes reported in western Tennessee . Storms strike parts of Kentucky , Arkansas and Tennessee . Manufacturing plant collapses in Kentucky , injuring seven people .