The station agent reported that a male suspect had just stabbed a female victim with a machete. SFPD and BART officers responded. The investigation determined that the assault took place in the hallway connecting the platform elevator to the concourse. The suspect stabbed or slashed two victims. One victim remained in the station, while the second victim and the suspect fled to the street. SFPD officers were were at the station exit immediately contacted the second victim and rendered aid the the victim in the station. The suspect was described as a black male, 30-40 years old, 5'10" tall, 200 pounds, wearing a green jacket and dark pants. The suspect was armed with a large machete-type blade. Because they were involved from the outset, SFPD took the lead in the investigation. The 7th & Market exit and platform elevator were closed to facilitate the crime scene investigation. There was no impact on train service.