Four armed robbers who bashed a jewellery store worker with a hammer during a terrifying heist in Brisbane are still on the run 10 days later.
Queensland Police have released CCTV footage of the robbery, which took place just after 5pm at a store on Gympie Road, Chermside, on June 10, and believe there may be links to a similar attack at a jewellery store on Lutwyche Road, Lutwyche, on May 8.
Three of the males caught on camera during the Chermside robbery are of African appearance, while the fourth was described by police has having a fair complexion. All were wearing black ski mask balaclavas and arrived in a stolen car.
Police said the thugs, who were armed with hammers and metal bars, smashed glass cabinets and stole a large amount of jewellery before fleeing the scene in a grey Honda CR-V station wagon with QLD registration 495ZJW that was stolen from Calamvale two days earlier.
A 38-year-old male employee was struck in the head with a hammer and taken to hospital in a stable condition.
Police have released images of four men they believe may be able to assist with investigations.




The first man is described as having a dark complexion, an athletic build and is believed to be in his late teens to early twenties. He was last seen wearing a high-vis long sleeved shirt, grey sweatpants, a green and brown cap, and a black balaclava.
The second man is described as having a dark complexion, a large build, and be over 182cm tall. He was last seen wearing a dark hooded jumper with Beverley Hills writing, black ski mask balaclava, black gloves, black Nike track pants with white Nike insignia on upper left leg.
The third man is described as having a fair complexion, a proportionate build and average height. He was last seen wearing a black hooded jumper, black balaclava and grey track pants.
The fourth man is described as having a dark complexion, solid build and be approximately 182cm tall, He was last seen wearing a dark hooded Air Jordan jumper, black ski mask balaclava, grey track pants.
During the Lutwyche robbery a group of men wearing balaclavas and armed with axes and hammers smashed glass cabinets and stole a large amount of jewellery before leaving in a white Hyundai Accent Hatchback with QLD registration 801YLM that was stolen from Keperra on May 7.
A female staff member needed medical treatment for injuries from broken glass.
Header image: Left, right, two men police believe may be able to assist with investigations (QPS).