The European Union (EU) is urging Turkey to restart the peace process with the Kurds after an attack in the south-eastern Turkish city of Diyarbakir killed at least seven police officers.
"Turkey should re-engage in [the] Kurdish peace process, which brought so many positive and promising results in the recent past," a statement from EU foreign affairs representative Federica Mogherini said Saturday.
The EU is ready to support a peace process, the statement said.
The explosion - which injured 27 people including 14 civilians - occurred Thursday in the Baglar district, near the bus terminal, as a police bus was driving past.
Late Saturday, the state-run Anadolu news agency, citing security agency sources, reported that five soldiers and a police officer were killed in a counterterrorism operation in Mardin province in south-eastern Turkey, which has seen stepped up military operations since mid March.
Turkey's mostly Kurdish south-east has seen renewed clashes with Kurdish militants since July, when a two-year ceasefire with the Kurdistan Workers' Party (PKK) broke down.
"A genuine political dialogue in the framework of the Kurdish settlement process is the only way to achieve a peaceful and sustainable solution," Mogherini's statement said.