A man, 23, was stabbed at Engadine on Saturday night after a fight with two women and three men.
Police were told the man was walking in Achilles Road about 11.40pm when he was confronted by the group.
”An altercation broke out between the parties, and the 23-year-old suffered stab wounds to his upper leg and back,” a police spokesman said.
“The fight was broken up by a witness.
“Two of the men and two of the women are believed to have left the scene in a Subaru Liberty and a Mazda 3.”
Paramedics took the injured man to Sutherland Hospital.
Police from Sutherland local area command are investigating.