Waco police shot bikers with their rifles in the deadly May shootout that erupted outside of a restaurant.

The acknowledgement comes for the first time in a 724-page incident report that was included in more than 8,800 pages of evidence reviewed exclusively by The Associated Press.

The evidence includes video footage of people fleeing the scene while shots ring out, and audio of police threatening to shoot people who rise from the ground.

It still isn't clear whose bullets caused the nine deaths. At least 20 people were injured in the May 17 melee.

Waco Police Chief Brent Stroman said in June that three officers fired a total of 12 shots, but declined to say whether the shots struck anyone.

The incident report shows Waco police have a separate investigation.