TULSA, Oklahoma –

A woman diving a pickup truck was involved in a standoff with Tulsa Police at the entrance gate to the Tulsa Air National Guard Base.

The incident began at about 11:30 a.m.  Sources tell News On 6 the woman claims to have a bomb.

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Video from Osage SkyNews 6 HD shows a dark green, four-door, four-wheel drive Chevrolet pickup truck on the driveway to the 138th Fighter Wing. A witness told News On 6 the woman had been driving the truck in a circle waving what appeared to be a white flag or cloth out the window.
At one point we saw the truck backing up toward the line of police cars at the end of the driveway. The truck stopped and we could see the left rear tire of the truck was flat. A few minutes later police left their vehicles and moved to the median of 46th Street North, leaving their squad cars where the driveway meets the street.

Police had their weapons aimed at the truck and were using ballistic shields for protection. At one point a member of the 138th Fighter Wing security force armed with a rifle approached the truck, getting to within about 15 feet, before slowly backing away and returning to the security checkpoint at the end of the driveway.

The Tulsa Bomb Squad arrived at the scene at about 12:30 p.m. and immediately began deploying a robot.