A large car bomb has hit a riot
police headquarters in Cizre, south-east Turkey, killing eight policemen
and injuring more than 45.
It is unclear who carried out the attack, but Turkish media blamed the banned Kurdistan Workers Party, PKK.
The UN and human rights organisations have demanded an investigation into allegations that more than 100 people were burned to death while sheltering in basements in Cizre - a poor town close to the Syrian border.
The Turkish government has rejected allegations that it targeted civilians. A string of PKK attacks have targeted Turkish security forces since a two-year ceasefire collapsed in July 2015.
Since then, military operations in the south-east and retaliatory attacks by the PKK have left hundreds of people dead.
Turkey's PKK conflict shows no sign of abating, says the BBC's Mark Lowen, and the government has ruled out any negotiations until the group completely disarms.
The latest violence comes as the army reels from a huge purge following a coup attempt in July. As well as fighting the PKK, Turkey is battling so-called Islamic State, whose militants have carried out a series of bloody attacks over the past year.
The PKK, which is banned in Turkey, launched its insurgency in 1984, alleging widespread abuse and discrimination against Kurds by Turkish authorities.