SEATTLE - Several Seattle schools were placed on lockdown Tuesday afternoon after the district received unconfirmed reports of ICE activity in the area. What we know: Seattle Public Schools said the shelter-in-place was activated at six separate campuses, including Mercer International Middle School, Aki Kurose Middle School, Cleveland STEM High School, Maple Elementary, Dearborn Park Intern. The ICE activity was reported by community members, according to Seattle Public Schools, though no ICE presence was ever observed. It remains unknown if immigration agents were conducting any business in the surrounding area.