LaVergne, TN – UPDATE – Law enforcement officers in La Vergne have ended a perimeter that was set-up earlier in the day on Wednesday, after exhausting search efforts in connection with an ongoing robbery investigation. While the subjects are still considered to be on the run, authorities have ended their set-up and are asking anyone with information on the case to contact them by calling 911 or their non-emergency line at (615) 793-7744.