Four police officers were killed and 14 people wounded in a bomb attack on Thursday targeting the Turkish police in the Kurdish-majority southeastern city of Diyarbakir, a security source said.
The attack comes as Prime Minister Ahmet Davutoglu, whose government has waged a relentless campaign against Kurdish rebels since last summer, was due on Friday to make a rare visit to Diyarbakir.
The security source told AFP that the bomb exploded as a police vehicle drove past the city’s main bus terminal. The wounded included eight police, three of whom were seriously hurt, and six civilians.
Turkish forces are engaged in an operation against Kurdish rebels from the outlawed Kurdistan Workers Party (PKK) in the region.
Hundreds of security force members have been killed since the PKK resumed its more than three-decade insurgency last summer.