Portland Police are investigating an incident near Portland State University where a driver went onto a sidewalk, hit three women and fled the scene.
The incident happened near Southwest 6th and Montgomery.
Three women have been taken to hospitals. One woman is in critical condition, another woman is in serious condition and the third woman doesn't want her condition released.
The three women were walking on the east side of the sidewalk on 6th Avenue between Harrison and Montgomery when they were hit.
Police say a fourth person may have also been injured and left the scene.
Some witnesses say it was an intentional act.
Police are collecting surveillance footage and are asking people that witnessed the crash to contact them.
Southwest 6th Avenue will remain closed to drivers and pedestrians until at least 3 p.m. Friday.
TriMet says the MAX Green, Orange and Yellow lines are disrupted in the area. Shuttle buses are moving passengers between Interstate Rose Quarter and Southwest Jackson.
A person saw a car similar to the one described in the incident near Northeast 16th and Glisan. Police surrounded the car and took the driver into custody. They're calling him a person of interest.
Police are investigating what caused the incident.
Photo below: Vehicle of person of interest/KATU