Police activity shut down Ga. 400 South in Alpharetta for hours Wednesday morning.
All southbound lanes were blocked about 6:30 a.m., when Alpharetta police started working a situation at the Haynes Bridge Road exit sign.
About two hours later, authorities turned southbound traffic around.
Lanes reopened just before 8:40 a.m., when police announced a safe resolution to the activity that prompted the shutdown.
» For updated traffic information, listen to News 95.5 and AM 750 WSB and follow @ajcwsbtraffic on Twitter.
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