See Hundreds of Wall Street Protesters Block Traffic on the Brooklyn Bridge

Reports of mass arrests are beginning to come in.

About 1,000 Occupy Wall Street protesters marched across the Brooklyn Bridge, stopped eastbound traffic, and were met by a heavy police presence under the western arches.

Gothamist reports protesters claim that police were trapping them on the bridge, and The New York Times says about 400 people have been arrested.

Here’s the "official" live stream , and there's more at #OccupyWallStreet on Twitter.

Photos by Alex Goldmark.