This story was updated at 7:35 p.m. with new details.

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UPDATE: Authorities have given the all clear after a SWAT standoff that took several hours this afternoon.

No injuries were reported.

Previous story:

Authorities have shut down a portion of East Brainerd Road as SWAT members and negotiators attempt to resolve a standoff with an armed individual.

According to Matt Lea, spokesman for the Hamilton County Sheriff's Office, deputies were serving a warrant to the person on Torbett Lane when they became agitated and brought a weapon out before turning back inside.

According to Lea, there are no hostages involved.

Lea said the SWAT team and other special service units were called to the scene to ensure the safety of deputies on scene.

There is no indication of when the standoff may end.

A Times Free Press photographer witnessed two SWAT vans and a tank-like vehicle in the area.

The story originally reported that a photographer witnessed "multiple" SWAT vans. The photographer saw two SWAT vans. Stay with the Times Free Press as more information becomes available.