Emergency providers had been referred to as to the carpark at Stockland Merrylands on McFarlene Avenue after a 19-year-old man was stabbed in his buttocks about 7.15pm yesterday.
Police had been informed a brawl broke out between the person and 5 others the place the 19-year-old was stabbed in his buttocks earlier than the group fled in a white BMW.
The lads had been reportedly armed with a baton and knife.
The 19-year-old was taken to Westmead Hospital for remedy for the stab wound.
Officers need to converse with the 5 males concerned within the brawl.
The group is described as being of Center Japanese/Mediterranean look with black hair.
Anybody with details about the group or who noticed the brawl is urged to contact police.