Three men were arrested after Clayton County sheriff's deputies discovered hundreds of guns during a bust at a Lovejoy pawn shop Wednesday night, Channel 2 Action News reported.

The bust happened at the Diamond Pawn Shop on Tara Boulevard.

About 400 guns were found in a storage shed and in the shop, which is not licensed to sell firearms, the report said. The business is also accused of selling guns to convicted felons.

"This is basically an underground market for firearms," Sheriff Kem Kimbrough told Channel 2.

Investigators also reportedly found drugs, counterfeit DVDs and $35,000.

Tuesday night, deputies arrested Robert Stevenson at his home for possession of marijuana and possession of a firearm by a convicted felon. That arrest led them to the pawn shop, Channel 2 said.

Authorities said Stevenson had been arrested 44 previous times.