Officials say that Essex County Public Schools dismissed students early on Friday, after several phone call threats were made to schools.

According to a Facebook post from Essex County Public Schools, all county schools dismissed at 10:30 a.m. on Friday, after receiving multiple phone calls of threats against Essex High School. According to a spokesperson with the school district, the school administration quickly went into lockdown, and the Essex County Sheriff’s Office and school division leadership teams were notified. School officials said local and state authorities advised the schools to err on the side of caution. Information about the nature of the threats is not yet available.