Overview

• Police say protesters moved from Boston Common to Tremont and Winter Streets around 6:50 p.m. and confronted officers near Park Street Station.
• Officials describe attempts to block police cars, kicking a marked cruiser, assaults on officers, and devices releasing red smoke.
• Thirteen people were arrested — eight men and five women — with names pending release as the investigation continues.
• Four officers were injured, two were taken to hospitals, with preliminary reports of broken bones and injuries described as non-life-threatening.
• Cellphone video and witness accounts depict a chaotic clash in the roadway during a demonstration on the two-year anniversary of the Hamas-led attack.