istanbul turkish cargo ship 10 crew board sink black sea near asian side istanbul early wednesday morning accord coast guard cause still unclear ship bilal bal carry cast iron turkey northwestern province bursa northern province zonguldak dogan news agency report unfortunately one cargo ship sink ... black sea prime minister binali yildirim say search rescue operations continue say three boat one helicopter one plane belong coast guard conduct search rescue operations accord coast guard empty lifeboats find well life jacket coast guard say five boat deploy aid operations well remotely operate underwater vehicle turkish naval force say cargo ship 10 crew sink black sea coast guard report