Reports of a suspicious package have closed the Detroit-Windsor Tunnel Tuesday night, leaving traffic backed up into the United States and Canada. A bomb unit is reportedly on the scene.
CBC News reports that two men entering Canada were detained and sent to secondary inspection, where authorities found a suspicious package inside their vehicle.
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That suspicious package is reported to have contained a smoke bomb, while brass knuckles, a knife and switchblade were found in the car.
The two men in custody are from Michigan.
Twitchy will continue to monitor the situation and update this post as necessary.