The vehicle was then driven up the south steps of the building before it stopped, Taylor said.

TEXAS RANCHER STRUGGLES AS A RESULT OF BORDER CRISIS, PAYING EXTRA MONEY TO SECURE PROPERTY

"The driver/sole occupant is in custody. There are no additional known threats at this time," according to a DPS memo obtained by the Austin-American Statesman.

"The scene is secure and safe for normal activity," the memo stated.

Taylor said the investigation was ongoing and unspecified charges were pending against the driver. The driver was not identified and no other information was immediately released.