An Antonov cargo plane operated by a Ukraine-based airline crashed Saturday near the city of Kavala in northern Greece, authorities said. snip Locals reported seeing a fireball and a plume of smoke. The explosions have sparked speculation among locals and some Greek media the plane was carrying explosives. State broadcaster ERT reported that army explosive experts were en route to the site, located on farmland close to two villages that are part of the Paggaio municipality.