A 59-year-old Florida man was arrested at the Capitol on Sunday after three guns were found in his vehicle along with ammunition, the U.S. Capitol Police said.

The police said Ty Carroll Mitchum of Clearwater was charged with possession of an unregistered firearm and possession of unregistered ammunition. His vehicle was parked in the unit block of Constitution Avenue NW, the police said.

According to police, officers contacted him on the Capitol’s west front.

In a preliminary interview, they said, he told them that he had guns.

It was not clear what brought the man to police attention.