"The act of sacrifice at TAI campus in Ankara at around 15:30 local time on Wednesday was carried out by a team of the immortals battalion" of the PKK, it said on Telegram, referring to Turkish Aerospace Industries.

The Turkish government says it had proof the, PKK listed as a terror group by Ankara and its Western allies, was behind the attack.

Hours later, Turkish warplanes dropped bombs on PKK targets in Iraq and Syria.

President Recep Tayyip Erdogan chaired a security meeting in Istanbul on Thursday soon after he landed from Russia where he joined the BRICS summit of major emerging economy nations.