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GREENSBORO — Greensboro police arrested two teenagers and cited a third after Fourth of July festivities became unruly in downtown Greensboro.

Officers say they used a tear gas spray to disperse an unruly crowd, in Jimmy John's on South Elm Street. Officials say no one was injured and the spray has no long term effects. Deputy Chief Wayne Scott of the Greensboro Police Department said verbal commands were not enough during Wednesday night's incident.

"When it becomes that teeter-totter effect than it is in the best public safety that we step it up and make sure that folks be removed from the scene than we begin to use other products that we have available," said Scott.

Scott explained officers only use the fogger spray, on average, around six times a year but the goal is to disperse a crowd and restore order.

"It affects the mucus membranes, they tear up, nose begins to run. It's hard to be combative or continue to fight when you can't see what you're doing," said Scott.

Greensboro Police will investigate the use of force in the incident. Officials say every officer in the department has been exposed to the gas and all are trained to use it.