A woman is hospital after allegedly being stabbed at a store in Epping.
Police were called to Costco on Deveny Road following reports of a dispute involving two women about 1.15pm.
The two women are believed to be work at the store.
A 45-year-old woman received non-life threatening injuries to her upper body during the altercation and was taken to The Northern Hospital.
The other woman was arrested and is assisting police with their enquiries.
Anyone with information is urged to contact Crime Stoppers on 1800 333 000.