Many injured in Turkey explosion

Fifteen people have been injured in an explosion in Izmir, Turkey's third largest city, police said.

The blast happened at a cafe in the affluent Alsancak district of the Aegean city.

"Two grenades were thrown into the cafe and exploded but the attack has no political links," Izmir police chief Huseyin Capkin told reporters.

A spate of deadly bomb attacks claimed by Kurdish separatists has hit Turkey this year.

This latest attack comes a day after the separatist Kurdistan Workers Party (PKK), which in the past has carried out bomb attacks, declared a unilateral ceasefire.

Turkey's top general has rejected the ceasefire by armed rebels, vowing to fight on "until not a single armed terrorist is left".

General Yasar Buyukanit, the new chief of military staff, said the PKK must "lay down arms unconditionally and give themselves up".

The PKK's conflict with Turkey has claimed more than 30,000 lives since it began in 1984.