Four teenagers were shot at a Portland, Oregon, high school today and police are searching for the gunman.
The shooting took place outside Rosemary Anderson High School
A police spokesman said a girl, 16, was in critical condition and two teen boys were in serious condition. A fourth victim, a 19-year-old female, was grazed in the foot, police said.
The spokesman said all four were affiliated with the school as students or in a job training program.
"We are looking at the possibility that the shooter may be gang affiliated," the spokesman said, but it wasn't clear if the victims had any gang affiliations or were unintended victims of a shooting.
The shooter fled the scene, police said.
The school serves at-risk students who have been expelled, are homeless or single parents. According to the school's website, 190 students are enrolled.
A nearby high school and community college were also temporarily placed on lockdown.
The Associated Press contributed to this report.