A service station worker has been taken to hospital after he was slashed with a sword during an armed robbery in Sydney's north-west on Tuesday night.
The 42-year-old man was working at a service station on Solander Drive in Kings Langley when three men entered with their faces covered.
The men, armed with a pistol, a shortened firearm and a sword, threatened the service station worker and demanded cash and cigarettes, police said.
While the worker was handing the men the cash drawer, the man with the sword allegedly lashed out with the weapon and partially severed the worker's thumb.
The trio then allegedly fled with the money, and were last seen running south on Reardon Avenue.
The worker was taken to Westmead Hospital where he will undergo surgery.
Police have established a crime scene at the service station, and are searching for the three men.
The men have all been described as aged between 20 and 25. Two were wearing black pants and a hooded top, and the third was wearing navy blue track pants, a grey shirt and gloves, and a white cap.
Police have urged anyone with information about the attack to contact Crime Stoppers.
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