U.S.-allied Kurds in Syria say 12 killed in strikes as Turkey responds to attack on state-run defense firm

Turkey launched airstrikes late Wednesday in Kurdish-held parts of Syria and Iraq in retaliation for a deadly attack at a state-owned defense manufacturer in Ankara that saw at least two attackers kill four people and wound more than a dozen others.

The Turkish government blamed the separatist Kurdistan Workers' Party (PKK) for what President Recep Tayyip Erdogan called a "nefarious" attack on the Turkish Aerospace Industries headquarters outside the capital.

Video verified by CBS News Confirmed showed damage to electrical infrastructure in Kobani and Qamishli, the de-facto capital of the semi-autonomous region controlled by Kurdish-majority forces in northeast Syria.