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LITTLE ROCK, Ark. — The lockdown at Little Rock Air Force Base has been lifted after more than four hours.

The lockdown was put into place because of a ‘suspicious person’ was on base.

All gates were closed and locked and sirens were heard alerting people to stay indoors.

Some vehicles were allowed to leave the base but no one is allowed to enter.

KTHV-TV reports this is not an active shooter situation or a drill.

A post on the base Facebook page read:

“The base is on lockdown as of 11:45 a.m. this morning in the interest of protecting all base members and resources from a suspicious individual. Emergency personnel are responding to the scene. For safety purposes, base gates are closed at this time. Further details will be provided as they become available.”