The suspect’s identity has not been released by the police.
Southport Police Chief Todd Coring described the incident as “a very tragic night” for the community.
The town is home to just under 4,000 people. “We’re a small community, one of the communities where everybody knows everybody,” Chief Coring said.
He said that possibly six people were injured, who are now being treated in hospital. The deceased have not been identified by the police.
The incident prompted officials in Southport to issue a statement urging people to remain in their homes while an active shooter investigation was ongoing.
“I’m comfortable to say that we don’t feel like there’s any additional threats to the community,” Chief Coring said after.