A school shooting at a high school in Marysville, Washington state, occurred Friday morning, leaving six injured and one dead, according to media reports. Officials have confirmed the death of the gunman, first reported by The Seattle Times, from a self-inflicted wound.

Ambulance, patrol, and police officers were seen arriving just north of Seattle and escorting students from Marysville-Pilchuck High School after an emergency lockdown had been lifted, according to television footage.

A spokesperson from the FBI's Seattle office said agents were on their way to the scene, about 35 miles north of Seattle, "to offer assistance to local partners" but provided no details, according to USA Today.

About six people might have suffered injuries during the shooting, with three patients being brought to the Providence Regional Hospital with gunshot wounds, one of which was to the head. Local television stations said two people were being airlifted to a hospital.

According to reports, another patient is believed to be on their way for treatment. However, the victims' conditions remain unknown.

The police department has not yet offered details on the incident.

Around 1:45 p.m. Friday, the shooting began in the cafeteria after two male students had "a disagreement about romantic feelings for a female student," according to The Atlantic.

A 17-year-old student told NBC News that her brother, a freshman, texted her that a student opened fire in the cafeteria.

"I was in my classroom and someone pulled the fire alarm and we thought it was a fire drill and we ran out and they told us to go back in a classroom," said the student, Cindy Rodriguez. "We're scared."

Teacher Keri Austin told MSNBC that the principal "has come over the loudspeaker two or three times just telling us there was a shooting...stay on lockdown."

"It's been at least 20, 25 minutes since we heard anything," Austin said.

Emergency services reportedly responded to the scene around 2:15 p.m.

Arthur White, who lives across from the school, told The Daily Herald that a large number of police vehicles converged on the scene late Friday morning.

"I've never seen so many police in my life. It's a tragedy," White said.

Meanwhile, it has not been confirmed whether all 2,500 students have been evacuated from the emergency lockdown. Police plan to clear the students, and then bus them away to a "reunification center" where parents will be able to meet their children, according to The Atlantic.

"The Marysville Pilchuck High School is currently in lock down due to an emergency situation. Police and emergency services have responded. The Marysville School District lock down procedures will remain in effect at Marysville Pilchuck until further notice from law enforcement. We will continue to forward communication in cooperation with law enforcement," the Marysville School District said in a statement.