Turkey migrant boat sinks in Bosphorus, 24 killed

At least 24 people have been killed and scores are missing after a boat said to be carrying migrants sank off the north coast of Turkey, officials say.
The accident took place where the Bosphorus meets the Black Sea.
A large air, sea and underwater rescue operation has been taking place with many bodies being pulled from the water.
The nationality of the migrants is unclear but it is unusual for a vessel carrying migrants to be in this area.
One theory is that the refugees were trying to get to Romania - a member of the European Union.
Turkey is one of the main departure points for migrants aiming for the EU, but most travel across the Aegean to Greece, the BBC's Turkey correspondent Mark Lowen says.