A Kentucky man was arrested outside the Pentagon recently after he showed up with a loaded shotgun and a machete in his truck, claiming to be there on "liberty business," according to a report.

Charles Lawson approached two police officers in the Pentagon parking lot at 3:30 p.m. on Aug. 6 and made incoherent statements, investigators said.

He admitted to having a weapon in his car when questioned and also to having spent the day drinking alcohol, WTOP reported Monday, citing court documents.

Police handcuffed Lawson and searched his vehicle. They discovered a loaded 12-gauge shotgun, a box of shotgun shells, an 18-inch machete and a pocketknife in his pickup truck, as well as an open bottle of whiskey and white paper with a "green leafy substance" wrapped inside, according to court documents.

File image of a machete. Police said the suspect also had a loaded shotgun.

File image of a machete. Police said the suspect also had a loaded shotgun. (iStock)

Lawson told police he had driven overnight from Pineville, Ky., stopping only for gas.

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Police took Lawson to the hospital for evaluations, where he commented to a doctor about being diagnosed as a schizophrenic, court documents said.

Lawson had been involuntarily hospitalized in November 2018 for mental illness, a background check found, and he cannot legally have a gun.

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Lawson is facing a federal charge of unlawfully possessing a firearm after being previously committed to a mental institution.