Nagorno-Karabakh: Washington in favor of an international mission

The United States' State Department spokesman Matthew Miller says the US is "concerned" about the Nagorno-Karabakh upheaval, after the territory, disputed by Azerbaijan and Armenia, was seized back by Azerbaijan.

The countries have fought two wars in the last three decades over Nagorno-Karabakh, a majority ethnic Armenian enclave within the internationally recognised border of Azerbaijan.