MINNEAPOLIS (AP) - The Minnesota State Patrol says the motorist who allegedly brandished a gun at another driver on a Twin Cities highway turned out to be a federal agent.

The incident began about 6:40 a.m. Tuesday on eastbound Interstate 694 in Brooklyn Park, where a motorist called police to report that another driver was displaying a gun.

Police caught up to the gun-toting driver on I-94 at Olson Highway and blocked two of the southbound lanes in downtown Minneapolis while making an arrest.

Reports the man was questioned and released after officers learned he was an agent for the Bureau of Alcohol, Tobacco, Firearms and Explosives and was carrying proper credentials.