Seattle Public Schools placed six schools on a "shelter-in-place" protocol Friday, and the Highline district imposed a modified lockdown at eight buildings.

Parents of students at a Springfield school received a notification about an alleged threat posted online. A parent of a student at Discovery Polytech Early College High School contacted 22News and said the school sent a text on Friday morning stating: “DHS Announcement: This morning a DHS student shared with us a screenshot of a social media post threat to the school.

Stratford schools are increasing security measures in the wake of a gun threat that targeted schools in other municipalities, police said.