Local media are reporting that police are responding to an active shooting at the Carmike 8 Cinemas in Antioch, Tenn.

A woman working near the building says she heard gunshots outside the building.

A nearby ice rink was placed on lockdown.

Update: Police are reporting that the shooter is dead inside the movie theater.

Witnesses say they heard “a lot” of shots, and reporters are saying the shooter had a hatchet with him as well, which he used to get into the back door of the theater.

Dan Linden is an NBC News producer.

Natalie Neysa Alund is a breaking news reporter for the Tennessean.

As of now, the biggest concern of authorities seems to be what might be in the shooter’s backpacks. Injuries seem limited to three people hit by a pepper spray explosion and a “superficial wound,” possibly from the hatchet.

And now, knowing how it ended, we’re beginning to learn how it all started.

Editor’s note: This is a breaking news story. Twitchy will update the post as details emerge.