Two thieves armed with hammers threatened a store’s staff, then they left from the scene with a stolen Mini.
The event took place on Stockport Road, Gee Cross.
The thieves received not only cash from the safe box but also cigarettes and alcohol in the robbery in a Tesco store.
Officers have shared the images of three men who ‘may have witnessed’ the robbery.
Police were called to the scene at around 9.45 pm on November 2.
In a statement, Greater Manchester Police said: “Two men armed with hammers threatened three members of staff and demanded money from the safe and tills. A bag containing personal items and keys to a white three-door Mini parked outside the store were stolen.
“The offenders then made off in the Mini with cash, cigarettes and alcohol.”
Nobody in the event was injured.
Det Con Susannah Holt, from Greater Manchester Police’s Tameside CID, said: “Thankfully no one was injured during this robbery where staff who were just doing their job were threatened with hammers.
“They were understandably left shaken, and we’re now appealing to members of the public to come forward if they recognize the men in the CCTV images. At this stage, we believe these men were witnesses because they entered the store around the time of the robbery.
“The offenders are described as two white men with Manchester accents, wearing khaki green North Face jackets, dark jogging bottoms, and trainers. One was wearing a black balaclava and the other was wearing a black scarf covering his face.”