A pair of armed assailants stormed the headquarters of Turkey's state-run aviation and defense company Turkish Aerospace Industries (TUSAS) on Wednesday, killing five people and wounding at least 22 others.

Assailants have set off explosives and opened fire in an attack on the premises of Turkish state-run aerospace and defence company TUSAS, killing five people and wounding more than a dozen, the interior minister said.

Turkey continued its strikes in Syria and Iraq for a second day following the terrorist attack on a defense company in Ankara, in what Turkey said were targeted hits on PKK terrorist locations.

It was not clear who may be behind the attack. Kurdish militants, the Islamic State group and leftist extremists have carried out attacks in the country in the past

A series of explosions and gunshots were heard at TUSAS, Turkey’s state-run aerospace and defense company, in an attack Turkey’s defense chief blamed on the outlawed Kurdistan Workers Party.

An attack at Turkish Aerospace Industries' headquarters near Ankara resulted in four deaths and 14 injuries. Two attackers were killed, and authorities termed it a terrorist act. Investigations are ongoing as no group has claimed responsibility.

The strike came days after President Recep Tayyip Erdogan suggested parole for the PKK’s imprisoned leader and hours after a terrorist attack in Ankara. Turkey regularly conducts airstrikes against the PKK,

No group immediately claimed responsibility. Turkey’s interior minister said it was “most likely carried out” by the Kurdistan Workers’ Party, or PKK.

A general view of the entrance of the headquarters of Turkey's aviation company TUSAS, where three people were killed and five others wounded in an attack, near Kahramankazan, a town of Turkish capital Ankara,

Recent gestures by Turkish leaders suggest the possibility of new peace talks with the group fighting for Kurdish autonomy.

Footage broadcast on Turkish television and shared on social media Oct. 23 showed an attack on an aerospace company's headquarters near the capital, Ankara.