The conditions of the wounded students were not immediately known.
Two students had been shot near Graham-Kapowsin High School in Pierce County.
One of the victims was found in a parking lot by the school football field and a second was found in a locker room, according to a tweet from the Pierce County Sheriff's Department. The suspects reportedly fled in green vehicle, possibly to Chevrolet Impala.
The conditions of the victims, both evils, were not immediately known.
The shooting occurred just off school grounds and the victims ran back on the campus, the sheriff's office said. They say the shooting may be gang-related.
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Deputies are currently sweeping the school grounds, although the department says there are no indications that the shooters are on campus. All the students have been secured with deputies, the department said.
The sheriff's office said the victims had been taken to Tacoma General Hospital. The Bethel School District confirmed in a tweet that the victims are students at the school.
The high school is located at 108th Avenue East and Eustis Hunt Road East in Graham. The gunshots were reportedly fired on the Eustis Hunt Road of the campus, the sheriff's office said.
Three schools are in lockdown as a result of the shooting, according to Bethel schools. In addition to the high school, Frontier Middle School and Nelson Elementary are locked down, the district said in a tweet
Students at Graham Elementary School have been released to their buses with staff supervision, according to the district.
US Rep. Dave Reichert, R-Auburn, tweeted the following statement: "My prayers are w / the families of the victims; the students, teachers, & staff at the school; & the community affected. My thoughts are also w / the law enforcement officers that are investigating this heinous crime. "