Three people were stabbed with knives and one was slashed with an unknown sharp weapon Friday night in San Francisco, police said.
A 25-year-old woman was arrested after allegedly jabbing a knife into the chest of a female victim near 16th and Capp streets around 7 p.m.
The wounded woman, 20, was taken to San Francisco General Hospital with wounds that were not life threatening. The attacker left the scene on foot but police later found and arrested her.
Around 2 a.m. the following day, a 33-year-old woman was stabbed in the ear and cut on the cheek with a knife near Bernal Heights. The victim was in an argument with two women and a man when one of the attackers pulled out a knife and attacked the victim on Mission Street near its intersection with Valencia Street. She fell to the ground and was later treated at SFGH. The trio got away on foot and police have not made any arrests.
A little over two hours later around 4:48 a.m., a 35-year-old woman was stabbed in the abdomen and cut on her forearm during a confrontation with three other women near Mission and Cotter streets. The woman was punched during the incident, but realized afterward that she had been stabbed with a knife, police said.
Her injuries were not life threatening.
The last incident happened at Stanyan and Haight streets around 11:25 p.m. Saturday when two men were fighting and one of them pulled out an a sharp object, cutting the other man three to five times.
Police said the wounded man, 20, was taken to SFGH with lacerations to his cheek and abdomen.
No detailed suspect descriptions were released by police in any of the incidents.