A man was arrested after security stopped him from entering the Roybal Federal Building and Courthouse with a heavily-armed vehicle Wednesday.

The man was allegedly wearing body armor and had a car full of loaded weapons and knives, according to KTTV.

The incident occurred between 9 a.m. and 10 a.m., as the SUV attempted to enter the building’s parking structure and security spotted the guns inside.

They building is named after congressman Edward R. Roybal and serves the central district of California.

A joint investigation is underway between the Federal Protective Service, Federal Buereau of Investigations and the Los Angeles Police Dept., as a motive has not yet been established.

No further details have been given by authorities.

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