The Texas Department of Public Safety said it received information Tuesday evening about an individual who was allegedly planning an attack on the Texas Capitol in Austin on Oct. 1. The threat prompted DPS investigators to immediately begin working with the FBI and local law enforcement partners.

DPS Criminal Investigations Division special agents worked throughout the night to investigate the information and identify the person allegedly connected to the planned attack. Authorities said the information was considered credible enough to launch an overnight operation.

At approximately 3 a.m. Wednesday, DPS SWAT personnel arrested the main suspect, identified as Benny Caldera Jr., 40, at his residence in Converse, Texas.

Caldera was transported to the Bexar County Jail following the arrest. He has been charged with felony terroristic threat against a public servant, according to DPS.

Authorities have not released additional details about what investigators believe the alleged attack would have involved, whether specific weapons or targets were identified, or what evidence led investigators to Caldera. DPS also has not disclosed the identities of any suspected co-conspirators.

The department emphasized that the investigation remains ongoing and that additional information could be released as investigators determine what happened and whether others were involved.

Texas lawmakers were notified of the threat and the arrest Wednesday morning. DPS leadership informed state legislators that the department had received information about an alleged attack planned for the following day and that the primary suspect had been taken into custody.

Despite the threat, the Texas Capitol remains open during its regular operating hours. DPS said, however, that it will maintain an enhanced security presence at the Capitol while the investigation continues.

The increased law-enforcement presence is intended to protect state officials, legislative employees and visitors to the Capitol. DPS said the additional security measures are being taken because of the active investigation and the nature of the threat.

The department also sought to prevent unnecessary alarm among the public, saying officials wanted lawmakers and others to be aware that a threat had been identified and that law enforcement was actively responding to it.

The arrest came less than 24 hours after DPS first received information about the alleged plot, with investigators working through the night alongside the FBI and local partners before the early-morning SWAT operation.

DPS has not said whether the alleged plot progressed beyond the planning stage or whether the suspect had taken any additional steps toward carrying it out. Officials have also not announced whether the Capitol itself was specifically targeted beyond the information investigators received.