The woman who flogged the liquor at the Super Liquor in Woolston.

Armed thieves have held up a liquor store in southeast Christchurch - for two boxes of bourbon and colas.

A man pulled a knife on a staff member at the Super Liquor in Woolston at 6.13pm on Thursday after he tried to stop his female accomplice making off with an 18-pack box of Codys and another 18-pack box of Woodstocks.

Manager Bhavik Passi said a woman grabbed the boxes and ran outside the store into a waiting car.

Staff at the Super Liquor were threatened with a knife after thieves made off with two boxes of bourbon and colas.

He said when he approached the car a man pulled a knife on him.

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Another shot of the culprit.

"A lady came into the store and she got two boxes of bourbon and she ran away from the store without paying.

"I went outside and I tried to hold her window handle. There are another two guys in the car and the one in the back showed me a knife. LIke a kitchen knife. He showed me that and told me 'f… off and go away.'"

Passi described the woman as a Māori or Pacific Islander woman in her 40s or 50s who was wearing a white singlet and a black pyjama top with a "patch" on it.

GEORGE HEARD/STUFF Super Liquor Woolston, Christchurch

Passi said he believed they were gang members because the woman wore a red handkerchief on her arm and the men were both wearing red T-shirts.

The manager described the men as both Maori or Pacific Islander aged somewhere around 35 or 40 years old.

The store then closed until police arrived and then reopened after police had taken statements.

Passi said the store had not experienced a hold up for a "long time".

Police had no further updates.