"Three days ago three aircraft with US armaments for Syrian Kurds' forces landed in the Syrian Kobani," Erdogan said Thursday, as quoted by the Turkish Anadolu news agency.
He added that at the same time, almost half of the military aid delivered by the United States fell into the hands of the Daesh.
Syria has been mired in civil war since 2011, with government forces loyal to President Bashar Assad fighting a number of opposition factions and extremist groups, such as the Daesh, outlawed in many countries, including Russia and the United States.
The United States has supported the Kurdish communities in Syria, as well as in the neighboring Iraq, in the struggle against terrorists. At the same time Washington supports Turkey, which has been a member of NATO since 1955, despite Ankara's actions in regard to the Kurds both in Turkey and in Syria.