Updated, 3 p.m.
Rogers, a sheriff's office spokesman, said no further leads development in the investigation and search at Hamilton Crossing Park, and authorities discontinued previous efforts.
Deputies, who have only a description of the gunman, will be on the lookout for the suspect as they continue extra patrols of the area, he added.
Updated, 2 p.m.
No one was hurt during the incident and sheriff's deputies aren't sure what led to the brandishing of a gun, reports on its Facebook page.
Knowles referred to the incident as a robbery when earlier he spoke to Cartersville Patch via phone. At that time, he said he was walking in the hallways of .
Two schools in Cartersville are on a "heightened state of alert," but not official lock downs, as authorities search for a robbery suspect, Schools Chief Dan Knowles said.
Sheriff's Sgt. Jonathan Rogers said a man pulled a gun on the victim in near Highway 293 and Hamilton Crossing Road. The male victim fled, as did the suspect.
Deputies are searching the area in attempts to find the gunman, and school police officers are conducting walk-through searches at and .
Elementary school officials are telling parents who call and inquire about the situation that students are not allowed to be alone while the incident is ongoing, but the facility's doors are open.
Cartersville Patch Editor Brande Poulnot's daughter, an 8-year-old second-grader, attends Hamilton Crossing Elementary School.