A woman was stabbed during an argument at a Costco store in Melbourne this afternoon.
It is understood the two women started arguing at the store at Deveny Road in Epping about 1.15pm.
A woman, aged 45, was been taken to hospital with non-life threatening injuries.
Another woman was arrested at the scene and is assisting police with their enquiries.
The women are understood to be known to each other.
An investigation is ongoing.