Smoke rises into the sky after an explosion at Burgas airport, outside the Black Sea city of Burgas, Bulgaria, some 400 kilometers (250 miles) east of the capital, Sofia, Wednesday, July 18, 2012. A bus carrying young Israeli tourists in a Bulgarian resort exploded Wednesday, killing three people and wounding at least 20, police said. Witnesses told Israeli media that the huge blast occurred soon after someone boarded the vehicle. <AP/NEWSis>
