UPDATE | Student shooter dead after school attack

MARYSVILLE, Wash. (AP) — A lone student shooter was dead today after an attack at a high school north of Seattle, police said.

Marysville Police Commander Robb Lamoureux said he did not have any additional information on where the shooting took place or if anyone else was killed or wounded.

Students and staff members were seen walking out of Marysville Pilchuck High School after police and ambulance crews surrounded the large campus of more than 2,000 students.

Police were going room by room, searching the school about 30 miles north of Seattle, to make sure it was safe.

"It is an active scene," Lamoureux said. "We do ask parents to please stay away."

Adam Holston, 14, a freshman, was just leaving the lunch room when the gunfire broke out.

"Everyone just started running," he told The Seattle Times. "I could hear the gun shots and my heart was racing and we didn't know what was going on."

There were conflicting reports about the number of possible injuries. Susan Gregg, a spokeswoman at Harborview Medical Center in Seattle, said the facility was expecting one patient but had no other information.

A crowd of parents waited in the parking lot outside a nearby church where they were being reunited with their children.