SAN DIEGO —

Navy security officers shut down a gate and detained a "suspicious person" Wednesday morning as the person attempted to enter the complex without credentials in the Midway District, authorities said.

Shortly before 6:45 a.m., the main gate of the Naval Information Warfare Systems Command -- formerly known as Space and Naval Warfare Systems Command -- was shut down to vehicle and pedestrian traffic after Navy Security Forces detained a suspicious person who attempted to enter the complex in a vehicle that had strange wires coming from the engine compartment, Capt. Brien Dickson, the base commander, tweeted.

Explosive Ordnance Device (EOD) experts and Navy Criminal Investigative Services (NCIS) were called to the scene to investigate. Base personnel were instructed to shelter in place during the incident until the threat could be assessed.

Shortly before 8 a.m., Dickson tweeted that the person's vehicle had been checked and cleared. San Diego police reopened Pacific Highway, which had been shut down between Barnett and Kurtz during the incident.

San Diego Police Department took custody of the individual and transported him to the San Diego County Mental Health for treatment and evaluation.

Naval Base Point Loma posted an update to its official Facebook page.