A steak knife, a carver and a blade were used in three separate stabbings over the weekend in San Francisco, said police.
The three victims — all men — suffered stab wounds to the face and back, puncture wounds to the back, and scratches over the head, in the respective incidents.
On Saturday, a 46-year old man was attacked by a man with a steak knife in the Tenderloin shortly before 8 p.m. after the pair got in an argument while waiting in a line near the intersection of Ellis and Jones streets.
The suspect pulled out the knife but only caused minor injuries to the victim, who had scratches to the back of the neck, chin and finger.
No arrest was made and the victim did not go to the hospital.
The second incident took place near the intersection of Font Boulevard and Cambon Drive at 12:05 a.m. Sunday.
The victim, a 19-year-old man, was involved in a fight with several others in the Parkmerced incident. He was stabbed in the back and slashed across the head.
No arrests were made and the 19-year-old man was taken to a nearby hospital.
The third incident, which involved a carving knife, occurred around 5:15 p.m. Sunday at Jesse and Sixth streets in the South of Market neighborhood when a man in his 40s stabbed another man, 42, in the back.
The uncooperative victim said that he and the stabber got in an argument and that he fell. But police on the scene noticed his puncture wounds.