Security forensic officials work at the area after an explosion on Istanbul's popular pedestrian Istiklal Avenue Sunday, Istanbul, Sunday, Nov. 13, 2022. A bomb rocked on a major pedestrian avenue in the heart of Istanbul on Sunday, killing six people, wounding dozens and sending people fleeing the fiery explosion. Emergency vehicles rushed to the scene on Istiklal Avenue, a popular thoroughfare lined with shops and restaurants that leads to the iconic Taksim Square.(AP Photo/Francisco Seco)