At least 10 people are feared to have died after a bus crashed into a bus stop in the Turkish capital.
Turkey's state-run news agency said several people were also thought to have been injured in the incident in Ankara.
Local reports suggested the bus driver lost control of the vehicle before crashing.
Footage from the scene showed medical teams stretchering injured people to ambulances and large crowds gathered around the bus, which had its windscreen smashed.
Thirteen migrants died in Turkish waters when a boat carrying 46 people en route to Greece collided with a dry cargo vessel and capsized, Reuters reports.
Six of those killed were children and 20 others were rescued, a Turkish coastguard source told the news agency.
The boat had left the Turkish coast near Canakkale province.
Seven of those rescued are receiving treatment and the search continues to find 13 missing people.
Earlier, in a separate incident 26 migrants were feared missing after a dinghy carrying them sank off the Greek island of Lesbos.
A car bomb was detonated near a police checkpoint in south-east Turkey by Kurdish militants, killing two officers and injuring five others, security forces have said.
Officials believe the Kurdistan Workers Party (PKK) was behind the attack, which claimed the latest casualties in the region's worst period of violence in more than 20 years.
More than 100 police officers and soldiers have been killed since a ceasefire collapsed in July.
Turkish forces based in Sirnak province responded by shelling a mountainous area nearby, where the fighters had fled after the bomb went off.
Two militants were killed in the operation, which was suppported by Cobra attack helicopters.
The French honorary consul in Bodrum has been suspended after being filmed apparently admitting she sold dinghies used by migrants.Read the full story ›
Ten Turkish police officers have been killed in a bomb attack on a minibus in the eastern Turkish province of Igdir, according to a government official quoted by Reuters.
There was no immediate claim of responsibility for the attack, but it comes amid a surge in violence between Turkish security forces and fighters from the and Kurdistan Workers Party (PKK).
Turkish warplanes struck PKK targets in northern Iraq on Tuesday, two days after a militant attack killed 16 soldiers in Turkey's southeast.
A British journalist held in Turkey on terrorism charges says he feels a "massive responsibilty" for his translator who remains in prison.Read the full story ›
The sister of one of the British journalists held on terror charges in Turkey has expressed her joy at their release.
Philip Pendlebury's sister Alex confirmed the news, writing on Facebook: "I can't even begin to tell you how happy I am.
"This has been the most difficult week of our lives but now the nightmare is over!
"I would like to express my gratitude and appreciation to each and every one of you, because without you this wouldn't have happened!!! From the bottom of my heart thank you so much!!"
On Wednesday, she told ITV Granada that the accusations were "ludicrous".
The two Vice news reporters arrested in Turkey have been released.
British journalists Jake Hanrahan and Philip Pendlebury were detained last Thursday in Turkey.
The pair were charged by a Turkish court with “aiding a terrorist organisation”.
It was reported yesterday that they had been moved to a high security prison.
The journalists' fixer, Iraqi national Mohammed Ismael Rasool, remained in custody.
VICE News has received confirmation from the British Foreign & Commonwealth Office that two of our journalists, Jake Hanrahan and Philip Pendlebury have been released from a Turkish prison.
While we are grateful that they have been freed, we are deeply worried by reports that our other VICE News colleague, Mohammed Ismael Rasool, has had his appeal of release rejected by the Turkish government. Rasool is an experienced journalist and translator who has worked extensively across the Middle East with VICE News, Associated Press, and Al Jazeera.
We call on the Turkish authorities for a swift end to this unjust detainment and to grant his immediate release.
The sister of one of the British journalists being held on terror charges in Turkey has told how she hopes their "nightmare" will end soon.Read the full story ›
At least 18 Turkish workers have been kidnapped by masked men in Baghdad, according to a construction firm.
The CEO of construction firm Nurol said that 18 employees had been kidnapped by men in military uniforms.
"People dressed in military uniforms broke down the door at 3 am (0100 BST) and abducted all these people," Nurol chief executive Ugur Dogan said.
Iraq interior ministry spokesman Brigadier General Saad Maan earlier said 16 people were taken during the raid in the north-eastern district of Habibiya.
Agence France Presse news agency reports that the men were working on a football stadium in the area when they were taken.