Security conditions at Joint Base McGuire-Dix-Lakehurst were abruptly elevated Tuesday to Force Protection Condition (FPCON) Charlie, prompting huge changes to the base’s defensive posture at one of the nation’s most critical military installations.

The move from FPCON Bravo to Charlie is not routine. It indicates that either an incident has occurred or intelligence has been received suggesting that a form of terrorist activity targeting military personnel or facilities is likely.

The base later clarified that the move was prompted by “multiple suspicious packages” that has been found on the base. Subsequent investigation confirmed that they posed no threat.