UPDATE: A Georgia State Patrol spokesman said that the robbery attempt took place in the Tractor Supply Parking lot. GSP TFC John Taylor overheard a lookout placed by Monroe Police Department for the suspect.  He was in the immediate area and saw a suspect fitting the description about a minute after hearing the lookout. The suspect was at the McDonald's BP gas station at Highway 138.

"John arrested the suspect without incident and turned him over to Monroe Police," GSP reported. "Monroe PD will be carrying charges in the case."

"It is still an active incident - we can confirm that one person is in custody," a spokesman said. Walton Tribune reported that, according to Monroe PD, 18-year-old Michael Morris, of Conyers, is in custody and that he had reportedly robbed three people while brandishing a plastic gun. He reportedly got away with $15.

Details to follow.