A brazen robbery that unfolded at an Adelaide banh mi shop, leaving staff shaken, has been captured on CCTV.

The incident occurred at around 6am when a masked bandit, dressed in fluorescent orange, stormed the Nhu Lan restaurant, brandishing what appeared to be a gun.

“I saw him. He got the gun. He tell me ‘open the counter,'” employee Xuyen Le said.

She stood her ground and told the robber to open the till himself.

CCTV footage shows him snatching the cash float and hidden notes from beneath the drawer before fleeing the scene. 

He was last seen disappearing southward along Hanson Road in Woodville Gardens.

The identity of the culprit remains unknown, and whether his weapon is real will form part of the police investigation. 

“The person may have been armed with a firearm,” Police Commissioner Grant Stevens said. 

“And until we have information that discounts that, we treat it like the person may be carrying a firearm.”