Five men and one woman were injured.
He reported no link to the game, which started at 1 p.m. and went on without incident.
Local media reports cited authorities as saying the shooting had had no impact on game day activities.
Authorities were also investigating whether the shooting was gang-related.
Surveillance video from the area may show the suspects and the vehicle involved, Lendvay said.
"At this time, six adults shot with three in critical condition".
Of the six people shot, five were reportedly transported by emergency vehicles and one person was transported in a private vehicle.
He said authorities have been unable to immediately determine whether there was any relationship among the wounded, noting none could be immediately interviewed though authorities hoped to do so later.
The sheriff's office tweeted an alternate traffic route for Jaguar fans to take after the game and Lendvay said anyone who parked near the crime scene would receive an escort back to their vehicle. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.
Six people were shot, leaving three of them in critical condition, in Jacksonville in the USA state of Florida, police said Sunday. The area around the shooting scene is blocked off.