Polish flags with black ribbons at the Saint Adalbert Catholic Cemetery in Niles, Illinois.
Poles mourning the death of the Polish president, first lady as well as the Polish delegation that died in the horrific plane crash on Saturday April 10, 2010.
They were flying to Russia to commemorate the 70th anniversary of the Katyn Massacre. The memorial in Niles is actually a monument dedicated to those who died in Katyn in 1940.
Here are a few other pictures of Poles mourning abroad.