EAST LYME, Conn. (AP) Police will be stationed at each East Lyme school Monday and backpacks will be checked at the middle and high schools as officials continue to take precautions following a threat posted on social media.

Police and the FBI are investigating a post last week on Yik Yak, an anonymous app, warning of a ``hail of bullets.''

Schools Superintendent James Lombardo said in an email to the school community Tuesday that students are encouraged to keep their backpacks at home to avoid lengthy searches.

The Day of New London reports school officials also postponed the boys' basketball games scheduled for Tuesday.