Organized Crime

Waco on guard after shootout at restaurant among rival biker gangs leaves 9 dead, 18 injured

  • Authorities investigate a shooting in the parking lot of the Twin Peaks restaurant Sunday, May 17, 2015, in Waco, Texas. Authorities say that the shootout victims were members of rival biker gangs that had gathered for a meeting. (AP Photo/Jerry Larson)

    Authorities investigate a shooting in the parking lot of the Twin Peaks restaurant Sunday, May 17, 2015, in Waco, Texas. Authorities say that the shootout victims were members of rival biker gangs that had gathered for a meeting. (AP Photo/Jerry Larson)  (The Associated Press)

  • Police detain and watch members of various motorcycle clubs near a Twin Peaks restaurant in Waco, Texas, Sunday, May 17, 2015. A shootout among rival motorcycle gangs at the popular Texas restaurant left nine bikers dead and more than a dozen injured, a police spokesman said Sunday. (AP Photo/John L. Mone)

    Police detain and watch members of various motorcycle clubs near a Twin Peaks restaurant in Waco, Texas, Sunday, May 17, 2015. A shootout among rival motorcycle gangs at the popular Texas restaurant left nine bikers dead and more than a dozen injured, a police spokesman said Sunday. (AP Photo/John L. Mone)  (The Associated Press)

  • Waco Police Sgt. Patrick Swanton addresses the media as law enforcement continues to investigate the motorcycle gang related shooting at the Twin Peaks restaurant, Monday, May 18, 2015, in Waco, Texas, where nine were killed Sunday and over a dozen injured. About 170 gang members charged with engaging in organized crime are each being held on a $1 million bond and authorities say charges of capital murder are expected in the wake of the Central Texas shooting. (AP Photo, Jerry Larson)

    Waco Police Sgt. Patrick Swanton addresses the media as law enforcement continues to investigate the motorcycle gang related shooting at the Twin Peaks restaurant, Monday, May 18, 2015, in Waco, Texas, where nine were killed Sunday and over a dozen injured. About 170 gang members charged with engaging in organized crime are each being held on a $1 million bond and authorities say charges of capital murder are expected in the wake of the Central Texas shooting. (AP Photo, Jerry Larson)  (The Associated Press)

Authorities are on guard in Waco after a shootout among rival motorcycle gangs at a restaurant left nine bikers dead and raised the specter of further violence.

Waco police Sgt. W. Patrick Swanton says authorities increased security to quell other possible attempts at criminal activity following the melee Sunday at Twin Peaks restaurant that also left 18 bikers wounded.

The violence erupted as members of at least five rival gangs gathered for a meeting.

Police say a dispute broke out, escalated to include knives and firearms and eventually spilled into the restaurant parking lot.

Parts of downtown were on lockdown Sunday night, and officials could be seen stopping and questioning motorcycle riders.

McLennan County Sheriff Parnell McNamara says the nine dead were members of the Bandidos or Cossacks gangs.