UN, Turkish, Russian and Ukrainian officials to run Istanbul center coordinating passage of critical food cargo through heavily mined waters, in accord hailed as 'beacon of hope'
First major agreement since invasion comes amid soaring global food prices, as sanctions on Moscow complicate exports from fertile region; UN to monitor shipments
Erdogan spokesman calls incident a 'heinous act'; opposition lawmakers also issue condemnations, as interior minister announces 2 suspects have been apprehended
Leaders set to discuss Syria war; gathering is opportunity for Russian president to meet Turkish counterpart, in bid to unblock grain export from Ukraine following invasion
Securing Turkish parliamentary approval for new members could still pose problem, as Erdogan warns he'll block process if Helsinki and Stockholm don't extradite 'terror suspects'
Country's media watchdog is dominated by Erdogan's ruling party and regularly fines critical broadcasters; Berlin says it 'regrets' move against Deutsche Welle and Voice of America
Woman is in immediate danger of deportation from Turkey to Iran, with Israel-based family fearing for her life; 'This is clearly a humanitarian case,' says attorney
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