A pair of shoes belonging to a victim are seen next to flowers, laid down by mourners at the site of Monday's explosion in the Turkish town of Suruc near the Syrian border, Tuesday, July 21, 2015. Authorities suspected the Islamic State group was behind an apparent suicide bombing Monday in Suruc in southeastern Turkey that killed 31 people and wounded nearly 100 ? a development that could represent a major expansion by the extremists at a time when the government is stepping up efforts against them. (AP Photo/Emrah Gurel), APTOPIX