US

Iranian mathematician Maryam Mirzakhani, the first woman to receive the Fields Medal, has died of breast cancer in the US.

The man nominated to be the next director of the FBI is promising to pursue justice impartially.

The two countries sign a deal to combat terrorism financing, as US Secretary of State Rex Tillerson tries to end a month-long rift between Arab states.

The US president's son has been asked to appear before the House Intelligence Committee over his meeting last year with a Russian lawyer. Audio

Donald Trump Jr has admitted meeting a Russian lawyer last year who said she had damaging information on Hillary Clinton.

The US president suggests joint work on cyber security but the US ambassador to the UN says the country "can't trust Russia".

Opinion - Donald Trump has pressed fast-forward on the decline of the US as a global leader, writes the ABC's Chris Uhlmann.

In an unusual move, the first daughter sat with world leaders while Donald Trump stepped away.

Nineteen leaders of the world's leading economies have broken with the US president on climate policy, in a rare public admission of disagreement.

Hamburg's streets have been overrun by violence on the first day of the G20 summit in Germany.

The European Union and Japan have agreed on the outline of a free trade deal to create the world's biggest open economic area.

US President Donald Trump has called on Russia to stop "destabilising" Ukraine and other countries and end support for "hostile regimes" such as those in Syria and Iran.

The US will use its "considerable military forces" to stop the rogue state's missile tests "if we must", its UN ambassador warns.

Chris Christie is under fire for relaxing on a beach he had ordered closed to the public.

A car has driven into a crowd at Boston's Logan International Airport in what appears to be an accident, local reports say.

An ex-employee has killed one doctor and injured six other people at the Bronx-Lebanon Hospital before shooting himself.

A narrower version of US President Donald Trump's controversial ban on travellers from six mainly Muslim countries has come into force.

The US president has launched an extraordinary attack on a female news anchor, describing her as "crazy" and "bleeding badly from a face-lift".

The White House has set new criteria for visa applicants from six mainly Muslim countries and all refugees, requiring them to have a "close" family or business tie to the US.