At least six people were killed in several locations in Tate County, Mississippi, local media reported on Friday.
The shootings occurred within the Arkabutla community, Action News 5 reported, citing Tate County Sheriff Brad Lance.
The suspect was taken into custody without incident. His identity has not yet been revealed.
One man was shot and killed inside a store and one woman was killed inside a home on Arkabutla Road. Her husband was also injured in the incident.
Four more people were later found to have been killed.
Arkabutla has a population of about 250 and is located 72 kilometres south of Memphis, Tennessee.
