Turkey's government says its military struck sites on Wednesday night in Iraq and Syria linked to Kurdish militant group the PKK, after blaming it for an attack near Ankara that killed at least five people.

Turkey launched airstrikes against what it said were sites linked to a Kurdish separatist group in Iraq and Syria, hours after an armed assault on a defense company killed five people in Ankara.

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