Officers responded to the store less than an hour before closing around 10:12 p.m. and found the victims and evidence of a shooting, Chesapeake Police public information officer Leo Kosinski told CNN.

The gunman is believed to be the store manager.

He reportedly opened fire on people before turning the gun on himself, media reports said.

City of Chesapeake earlier tweeted: "Chesapeake Police confirm an active shooter incident with fatalities at the Walmart on Sam’s Circle. The shooter is deceased."

Walmart said they were 'shocked' by the incident.

"We are shocked at this tragic event at our Chesapeake, Virginia store. We’re praying for those impacted, the community and our associates. We’re working closely with law enforcement, and we are focused on supporting our associates," the supermarket chain tweeted.