BOSTON (WBZ NewsRadio) — Video released by the Massachusetts Department of Transportation shows a scary moment for a cyclist in the Prudential Tunnel on Wednesday.

In the video, a person can be seen hoisting their bicycle over the concrete barrier at the edge of the roadway, before pushing the bike across two lanes of traffic.

Two vehicles hit their brakes and swerve out of the right lane to avoid colliding with the person.

It's not clear why the cyclist was in the tunnel, and no other information was available at the time of publication.