Migrants and refugees clash with riot police, 移民和難民與防暴警察衝突

Migrants and refugees clash with riot police during a protest to call for the reopening of the borders at their makeshift camp in the northern border village of Idomeni, Greece.
April 7, 2016
http://www.voanews.com/media/photogallery/april-7-2016-day-in-photos/3274991.html