ABILENE, Texas -

Two civilians who “apparently lost their way” and attempted to gain unauthorized access to Dyess Air Force Base caused the base’s main gate to be closed Thursday evening, a Dyess spokesman said Friday.

“The guard on duty at the main gate noticed a suspicious device in their vehicle, at which point he secured the area and initiated an investigation in accordance with standard operating procedures,” SSgt Joel Mease said in a statement.

“The Abilene Police Department assisted with traffic control outside the gate.  After determining the package was harmless, the base resumed inbound and outbound traffic at approximately 10:35 p.m.”

Dyess officials initially said the main gate was closed for a "security concern."

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It remains unclear why the main gate at Dyess Air Base was closed for a “security concern” Thursday evening, but it has been reopened.

Dyess Air Force Base released the following statement around 10:30 p.m. Thursday:

"The investigation at the Dyess Air Force Base front gate has been terminated. Inbound and outbound traffic may now utilize the front gate."

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A security concern of some kind has closed the Dyess Air Force Base main gate.

Shortly after 8 p.m. Thursday, the Dyess Air Force Base main gate, also known as the Arnold gate, was closed because of some type of security concern.

A Dyess spokesperson is not elaborating on what the concern is.

The main gate is currently closed to inbound and outbound traffic while the 7th security forces squadron investigates and resolves a potential security concern.

Dyess says the Tye gate is open to allow authorized personnel to enter and exit the installation until the front gate is reopened.

We will continue to keep you updated on the situation.