Zach Bryan arrested in Oklahoma

Zach Bryan was arrested in Oklahoma … TMZ has learned.

The country music star was arrested Thursday in Vinita, Oklahoma and charged with obstructing an investigation … according to online jail records.

TMZ obtained Zach’s mugshot, which he took at the Craig County Jail, and he is mostly expressionless.

It is unclear what led to his arrest.

The same day he was arrested, Zach posted a photo of farmland from a car window on his Instagram account with the caption… “On the road again, I’ll watch the birds win.”

Zach is an avid Philadelphia Eagles fan and the NFL team plays its season opener on Sunday against the New England Patriots in Massachusetts…so it’s possible Zach was driving to the game when he was arrested.