The US unleashed its "toughest ever" sanctions against Iran on Monday following a wave of protests across the oil-rich country.
President Donald Trump has warned that the US will bolster its nuclear arsenal to put pressure on Russia and China.
Former Soviet President Mikhail Gorbachev says US President Trump's plan to withdraw from a key Cold War nuclear weapons treaty is a reversal of efforts to achieve nuclear disarmament.
Hurricane Michael left "unimaginable destruction" as it ploughed into coastal areas of Florida, the state's governor, Rick Scott says.
The New York State Tax Department has confirmed it is investigating claims by the New York Times that President Trump helped his parents dodge millions of dollars in taxes.
Theresa May is being warned by cabinet colleagues that a shift towards a harder Brexit will hasten the break-up of the UK, amid a renewed attempt by Brexiters to secure a clean split from the European Union.
The International Monetary Fund has warned that a "no-deal" Brexit on World Trade Organization terms would entail "substantial costs" for the UK economy.
Jeff Masters, one of the most respected meteorologists in America, has begun to wonder publicly about the potential for a category 6 hurricane. He launched a lively debate among his colleagues with a provocative post in July of 2016 on the Weather Underground – a thought-provoking piece that prompted the Weather Channel and others to weigh in with their thoughts and theories as well.
US President Donald Trump has issued a series of warnings to prepare for Hurricane Florence, which is gathering power as it approaches the Carolinas.
Donald Trump is facing a “coup”, former White House chief strategist Steve Bannon said, adding that as a result the US was facing a crisis comparable only to that faced by Abraham Lincoln during the civil war.
Russia's unmanned Luna-25 spacecraft has crashed into the Moon after spinning out of control, officials say.
Donald Trump has confirmed that he will not take part in Republican presidential debates with his rivals in the race for the White House.