Sandy Hook
Details were unclear about a Marysville Pilchuck High School shooting Friday. In this photo, people react as they sit and watch families of Sandy Hook Elementary shooting victims testify at a public hearing on gun control at Newtown High School in Newtown, Connecticut in 2013. Reuters

Police confirmed that a student shooter was dead at Marysville-Pilchuck High School, according to reports. Details were unclear, but the Washington state school was on lockdown, students were evacuating Friday and police were responding to the shooting, according to KIRO TV.

The Associated Press reported three victims were in critical condition. As many as seven people may have been injured.

"Right now, we are confirming that there is one deceased, and that is the shooter," police spokesman Robert Lamoureux said at a press conference. There was no clear motive, and Lamoureux said he did not know the status of all the students. Officers were clearing all the buildings on campus to ensure there was no active threat.

The Seattle Times reported that the shooter died from a self-inflicted gunshot wound. A witness told a KING 5 reporter that the gunman, a freshman on the football team, shot students who were sitting at his lunch table with a small handgun. There may have been as many as 60 students in the cafeteria at the time.

The Marysville School District released the following statement:

“The Marysville-Pilchuck High School is currently in lockdown due to an emergency situation. Police and emergency services have responded. The Marysville School District lock down procedures will remain in effect at Pilchuck until further notice from law enforcement. We will continue to forward communication in cooperation with law enforcement. Students who attend MPHS campus are being relocated to the Shoultes Community Church at the corner of 116th and 51st Street. Buses will take students home from there. Those parents in the area wanting to pick up their child will need to go to the church location and sign out their child out with school administrator or law enforcement. All after-school activities across the district are canceled today.”

When the shooting began, CNN reported, students thought it was a fire drill. People inside the school began tweeting about an incident near the cafeteria at about 10:45 a.m. Pacific Time.

ABC News reported that FBI personnel were en route to the school, which is about 45 minutes north of Seattle. United States President Barack Obama was briefed on the situation.