The United States imposes sanctions on Turkey's presidency of defense industries and its president Ismail Demir, according to the US Treasury Department website.
The US has also blacklisted three more Turkish individuals linked to Turkey's presidency of defense industries, according to the US Treasury Department.
President Tayyip Erdogan said on Monday Turkey expects its NATO ally the United States to support it and not sanction it over its purchase of Russian S-400 missiles, and added he was upset that Washington went ahead with the sanctions process.
Neither sanctions from the United States nor the European Union would deter Turkey from defending its rights, Erdogan added in an address after a cabinet meeting.
Reuters, citing sources, reported last week that the United States was poised to sanction Turkey over the S-400s. The US Congress has also passed a defense spending bill including a provision for such sanctions.