An active security situation is unfolding Wednesday at Tinker Air Force Base in Oklahoma City after officials issued an emergency shelter-in-place order due to a potential active shooter threat.

Base officials released a statement advising all personnel, residents, and individuals on the installation to immediately shelter in place as law enforcement and military security teams respond to the developing incident.

Authorities have not yet confirmed specific details about the reported threat, but officials described the situation as involving a “potential threat” on the base.

Emergency response teams and security personnel were seen moving throughout portions of the installation Wednesday as the lockdown remained active.

Individuals on the base have reportedly been instructed to stay indoors, secure doors, remain away from windows, and wait for further instructions from authorities.

Witnesses described a tense atmosphere as alerts circulated across the installation warning people to remain sheltered.

“We were told to lock down immediately,” one individual familiar with the situation said. “Everyone is just waiting for updates.”

At this time, officials have not confirmed whether any shots were fired or whether there are injuries connected to the incident.

The lockdown at Tinker Air Force Base remains in effect as authorities continue investigating and securing the area.

Officials are urging the public to avoid the base and surrounding areas while emergency operations continue.

More information is expected to be released as authorities provide updates on the ongoing situation.