Istanbul suicide attack kills four, wounds 20: governor

A suicide bombing rocked a major shopping street in Istanbul on Saturday, killing four people and wounding 20 others just six days after a deadly attack in Ankara, Turkish authorities said. The attack took place on Istiklal Caddesi, a pedestrian street that was relatively quiet Saturday morning but is usually thronged with shoppers, strollers and buskers later in the day. "This is a suicide attack, a terrorist attack," Istanbul governor Vasip Sahin told reporters at the scene, saying the bomber