Four people, including an infant, were killed on Sunday in Lakeland, southeastern U.S. state Florida, according to local media reports.
An 11-year-old girl was injured after being shot "multiple times" in the incident, said the reports.
Polk County Sheriff Grady Judd said the shootings took place at 4:30 a.m. in two separate houses, adding that the suspect surrendered after being wounded in a shootout with police.
No police were injured in the shootout, he added.
The suspect reportedly was a survivalist "who came for a gunfight" and admitted to using methamphetamine.
