The U.S. Treasury Department blacklists two Emirati companies for conducting business with Iranian airline Mahan Air, which itself is blacklisted for its close ties with the Iranian Revolutionary Guards.
Macedonia, Serbia, Croatia, and Slovenia shut their borders to so-called economic migrants, those not coming from war-torn countries such as Syria, Afghanistan, or Iraq, leaving thousands stranded at Balkan border crossings. Around 500 migrants from Iran, Morocco, and Algeria gather on the border between Greece and Macedonia to protest the closure.
The President of the United States Barack Obama and the Prime Minister of the United Kingdom David Cameron meet at the White House in Washington D.C. to discuss Afghanistan, Syria, the global economy and Iran.
European Union leaders approve sanctions in Brussels, including bans on investments and oil-gas technology transfers, against Iran, harsher than recent sanctions imposed by the United Nations. Russia calls these and sanctions by the United States "unacceptable".