ANCHORAGE, Alaska (AP) — Authorities on Wednesday were investigating threatening phone calls to at least eight schools in Alaska in the past 10 days that prompted brief campus lockdowns and students being kept in classes. The FBI was advised of the incidents by Alaska State Troopers and was determining whether the cases fell under federal jurisdiction, FBI spokeswoman Staci Feger-Pellessier said. School district spokeswoman Heidi Embley declined to identify the school but said the principal notified school employees and parents "explaining that it was a very generic phone call and that students were not in danger."