The US Senate has rejected repeated Democratic attempts to secure new evidence in President Donald Trump's impeachment as his trial began.
An Iranian politician has announced a $3million 'cash prize' for anyone who kills President Donald Trump.
China's top leaders have warned lower-level officials not to cover up the spread of a new coronavirus that has now infected nearly 300 people.
Chinese authorities have reported 139 new cases of a mysterious virus in two days, marking the first time that the infection has been confirmed in the country outside of Wuhan city.
An aide to Donald Trump's lawyer claims the president "knew exactly what was going on" with efforts to pressure Ukraine into investigating former Vice-President Joe Biden and his son.
"The moment of crisis has come" in efforts to tackle climate change, Sir David Attenborough has warned.
The US and China have signed an agreement aimed at easing a trade war that has rattled markets and weighed on the global economy.
Russia's government has resigned, hours after President Vladimir Putin proposed sweeping constitutional changes that could prolong his stay in power.
Iran's President Hassan Rouhani has said the country's military should elaborate more on how it shot down a passenger plane by mistake last week.
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.