At least seven people were killed and 54 wounded in two explosions in south-eastern Turkey allegedly carried out by the Kurdistan Workers' party (PKK), media reports and government sources said Wednesday.
The attacks in the Kurdish city of Diyarbakir and in Mardin near the Syrian border targeted the security forces, broadcaster CNN Turk reported, but there were many civilians among the victims.
No-one immediately claimed responsibility for the attacks, but the government blamed the outlawed PKK.
A bomb exploded next to a police bus as it passed a hospital on a busy street in Mardin, killing two people and wounding at least 50 including four police officers, CNN Turk reported. Government sources said three people died.
Five people died in the bombing of another police bus in the Sur district of Diyarbakir.
The Turkish state has been battling Kurdish militants in the south-east for more than 30 years, leaving more than 40,000 people dead. The Kurdish minority has long complained of systemic discrimination.
A ceasefire between the state and the PKK collapsed in 2015, after holding for more than two years, when the state put peace talks on hold.
Earlier Wednesday, five Turkish soldiers were killed and seven injured in an attack near a border post in Sirnak province along the country's south-eastern border with Iraq. The PKK was also suspected of carrying out that attack.