Atlanta protestors shut down the I-75/85 Connector near Edgewood Avenue for a time on Tuesday evening although authorities moved quickly to intervene and get things moving again.
The Atlanta Police Department said "four or five" people were arrested in connection with the action but didn't have specific details immediately.
WSB's helicopter footage showed first the highway obstruction, then a thinning crowd that returned to surface streets.
WSB Traffic Team reporter Jason Durden has been in a helicopter above the protestors throughout the evening and said the highway was blocked for at least 15 minutes.
"At one point, they formed a human chain across the Downtown Connector," he reported.
Authorities quickly descended after the highway was shut and moved the protestors out of highway traffic lanes.
From these photos posted Tuesday evening, it appears this action took place near Grady Hospital, the largest hospital in the state of Georgia and one of the busiest Level 1 trauma centers in the country. It's unclear if emergency vehicles encountered delays delivering patients due to the halted highway.
To be sure, any sort of traffic snag in downtown Atlanta can linger long after the incident clears although traffic looks OK at the moment. Stick with WSB TV and radio (both have handy apps if you aren't near a television or radio) and please return here for updates.