Authorities say three people were shot in a drive-by shooting outside the alternative Rosemary Anderson High School in North Portland, Ore. on Friday.
The three victims were transported to a hospital in unknown condition and the suspect or suspects are still being sought, Portland police say.
Police say they suspect the shooting may be gang-related.
According to authorities, the victims were conscious and breathing as they were transported to the hospital.
The school's website says it caters to "at-risk students who have either been expelled or dropped out of public high school and many are homeless."