DEKALB COUNTY, Ga. — Disturbing surveillance video shows the moments two men started shooting at each other at a DeKalb County wings restaurant.

The shooting happened at Atlanta’s Best Wings off Covington Highway early Wednesday morning.

The employees told Channel 2 Action News that two men came into the store and got into an argument over a $1 bill one of them dropped.

Video obtained by Channel 2 Action News shows a man with a backpack on fire repeatedly at the other man, then run from the store. The other man lies on the floor of the restaurant, bleeding.

A few minutes later the man with the backpack runs back up to the restaurant and shoots again. The man on the ground then fires several rounds through the window of the store and crawls out of the frame.

A few minutes later, the man with the backpack runs back up to the restaurant and shoots again. The man on the ground then fires several rounds through the window of the store and crawls out of the frame.

A few more minutes pass before the man with the backpack runs back into the store. You can hear more gunshots and the man falls down outside the store.

Neither man has been identified. Both are in critical condition.

No one else in the store was hurt.