Warsaw residents place candles before the national Border Guards Headquarters in a sign of mourning for four migrants found dead over the weekend along the border between Poland and Belarus, Warsaw, Poland, on Monday, Sept. 20, 2021. European Union members Poland and Lithuania are facing increasing migrant pressures on their borders with Belarus, which are part of the bloc's eastern border and say it is a "hybrid attack" by Belarus to destabilize the 27-nation EU. (AP Photo/Czarek Sokolowski)