State and local police in Colorado are investigating after they said a suspect forced his way into the Colorado Supreme Court building early Tuesday, held a security guard at gunpoint and fired multiple shots inside the building.

Colorado State Police said a preliminary investigation concluded the incident was likely not related to the reported threats made against justices after the state disqualified former President Donald Trump from the 2024 presidential primary election.

The incident began about 1:15 a.m. after a two-vehicle crash took place just outside the building in downtown Denver, Colorado State Police wrote in a news release.

According to troopers, one of the drivers pointed a gun at the other driver and, shortly after the wreck, shot at a window of the Ralph L. Carr Colorado Judicial Center where the state court is housed.

The suspect with the weapon then entered the building and came in contact with an unarmed Colorado State Patrol security guard, officials said in the release.

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More shots fired inside courthouse

As he held the security guard at gunpoint, the release says, the suspect demanded access to more of the building.

"The individual obtained keys from the security guard and proceeded into other parts of the building and accessed an unknown number of floors," troopers wrote in the release.

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Troopers and officers with the Denver Police Department, the lead agency on the case, responded to the scene and set up a perimeter. The suspect then made his way to the seventh floor, where authorities said he fired additional shots inside the building.

At about 3 a.m., the suspect dialed 911 and "voluntarily surrendered to police," according to the release.

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Building sustained 'significant and extensive damage'

No injuries were reported, but the building sustained, "significant and extensive damage."

The suspect was taken into custody and taken to a hospital to be cleared by medical personnel.

Earlier potential threats against court's justices

A motive in Tuesday's incident was not immediately known and the case remained under investigation by state police and Denver police, but troopers said it does not appear it is related to earlier reported threats made against the court's justices.

FBI spokesperson Vikki Migoya previously told USA TODAY the federal agency was working with local law enforcement to investigate threats on the justices after their decision to disqualify Trump from the 2024 presidential primary election.

Natalie Neysa Alund is a senior reporter for USA TODAY. Reach her at nalund@usatoday.com and follow her on X @nataliealund.

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