Kurdish militant PKK may be behind Istanbul attack: Turkey's Deputy PM

"The arrows point at the PKK. It is clearly a planned event. There will be an announcement once the investigations are over. We cannot say anything definite for now," Numan Kurtulmus said.

Ankara: Turkey`s Deputy Prime Minister Numan Kurtulmus said on Sunday that the outlawed Kurdistan Workers Party (PKK) may be behind the attack that killed 38 people and wounded 166 outside a soccer stadium in Istanbul. 

In comments broadcast on CNN Turk, Kurtulmus also said that countries offering messages condemning the bombing should also show solidarity with Turkey`s fight against terrorism.

"The arrows point at the PKK. It is clearly a planned event. There will be an announcement once the investigations are over. We cannot say anything definite for now," Kurtulmus said.