Frightening CCTV stills from the armed robbery of a Christchurch dairy have been released by police.

The video stills show a firearm-wielding man with a covered face walking into the Koki Dairy on Linwood Ave about 8.30pm yesterday.

The man threatened staff with the gun and demanded money and cigarettes, police said.
He was last seen running into Damien Place.

Anyone who could identify the man or had information about the robbery should contact police on 03 363 7400 or Crimestoppers, anonymously, on 0800 555 111.