"I was just about to close when the man came in and pointed the gun at my head. He yelled at me to give him all the money, and we had all the day's takings in there, and all the cigarettes and tobacco," she said.
"It was very frightening and I tried to keep telling myself to keep calm. He kept saying 'hurry up' and said 'don't make me have to use this [gun]'. He wasn't swearing or anything like that, but I was scared and I put money and cigarettes and tobacco in his bag and he ran out of the door and into a waiting car.
The man in the car was also yelling to hurry up and honked the horn at him too."
A stationwagon, possibly silver, was waiting outside with a getaway driver and its engine running.
The woman called police, who arrived 15-20 minutes' later, but the robbers were not found.
She said the robbery had upset many people in the area.
She urged anybody who knows who the robbers are, or who may have seen any suspicious activity around the store on Saturday evening, to contact police so the men were caught, as she did not want another store worker to go through the same trauma.
The man who robbed the store was wearing a dark-coloured hoodie and beanie, grey camouflage shorts, and white and black or blue sports shoes. He was unshaven.
Please ring Whangarei police on (09) 430 4500 or Crimestoppers anonymously on 0800 555 111 with information.