GA-400 crash causes late-night traffic mess, injuries

A late-night crash along Georgia 400 is under investigation. 

It happened around 8:55 p.m. in the northbound lanes between Windward and McFarland parkways. 

According to the Alpharetta Department of Public Safety, the crash shut down multiple lanes of traffic for a few hours as crews worked to clear the wreckage. 

Authorities reported injuries in the crash, but did not elaborate as to the number or extent. 

The crash remains under investigation.