Shots were fired in the Colorado Supreme Court building last night

A man was arrested early Tuesday after breaking into the Colorado Supreme Court building, holding a security guard at gunpoint and opening fire inside, local authorities said. No injuries were reported, although the judicial center suffered extensive damage.

The incident, two weeks after the court voted to bar former President Donald J. Trump from Colorado’s 2024 presidential primaries, came at a time of mounting tension across the country over legal issues surrounding the eligibility of Trump to run for president.

The judges in the court did that reportedly receiving death threats since the decision on Mr. Trump was made, but authorities in Colorado said they did not believe Tuesday’s shooting was related to those threats, which remain under investigation.

The man who opened fire at the Colorado Judicial Center, which houses the state Supreme Court and other judicial agencies, had been involved in a car crash nearby and allegedly pointed a gun at the other driver, said the State Patrol in a news release.

He then shot out a window of the Judicial Center, entered the building and held one of the guards at gunpoint, demanding the guard’s keys. The guard was not armed.

The suspect then went to the 7th floor and fired more shots, authorities said.

Denver police officers and Colorado State Troopers surrounded the building. At 3 a.m., officials said, the suspect, whom police have not publicly identified, called 911 and surrendered.

This is a development story. Check back for updates.