At least five people were injured Thursday in a possible stabbing incident at a high school in Tacoma, Washington, authorities said.

The incident was reported at Henry Foss High School, a little after 1:30 p.m. local time, Tacoma Police Department spokesperson Shelbie Boyd told CBS News.

According to Boyd, police were called to the school on a report of a possible stabbing or altercation and arrived to find four wounded students and an injured campus security officer.

The suspect, also a student, was detained at the scene, Boyd said.

The five victims and the suspect were transported to several area hospitals, but their conditions were unknown, Boyd said. Tacoma Fire Department spokesperson Chelsea Shepherd told CBS affiliate KIRO-TV that four people sustained serious injuries.

The exact circumstances that led up to the attack were still unclear. Tacoma police detectives and forensics officers were on scene conducting an investigation. 

The campus was locked down, Boyd said, and police arranged for parents to meet their children in the school's parking lot.

Tacoma is located about 30 miles south of Seattle.