The Kurdistan Workers' Party (PKK) militant group has claimed a deadly attack on a state-run aerospace company in Turkey’s capital Ankara.
Attackers set off explosives and opened fire against Turkish Aerospace Industries (TAI) in the Kahramankazan district of Ankara on Wednesday, killing five people and injuring 22 others.
"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, the group said on Telegram on Friday.
Turkey conducted airstrikes on PKK targets in Iraq and Syria on Thursday after saying that it had proof the group was behind the attack.
President Recep Tayyip Erdogan chaired a security meeting in Istanbul on Thursday soon after his arrival from Russia where he participated in the BRICS summit of major emerging economy nations.
PKK militants regularly clash with Turkish forces in the Kurdish-dominated southeast of Turkey.
Turkey, along with the European Union and the United States, has declared the PKK a terrorist group and banned it. The militant group has been seeking an autonomous Kurdish region since 1984.
Turkish ground and air forces frequently carry out operations against PKK positions in the country as well as in northern Iraq and neighboring Syria.
More than 40,000 people have been killed during the three-decade conflict between Turkey and the militant group.