A freight train derails in Washington DC, spilling hazardous liquid, but no injuries are reported and no evacuation orders are issued.
The president of Iran congratulates voters on electing a record number of women to parliament since before the 1979 Islamic revolution.
The ruling party in North Korea is due to hold its first congress in nearly 40 years, when Kim Jong-Un will be officially proclaimed as the country's Supreme Leader.
Shia Muslim activists who occupied Iraq's parliament on Saturday begin to leave Baghdad's government district after a call by their leaders.
Lions rescued from circuses in Colombia and Peru have been released at Emoya Big Cat Sanctuary in South Africa.
A little less conversation in North Korea
US President Barack Obama's elder daughter Malia will attend Harvard University in 2017, after taking a gap year.
French police clash with demonstrators in Paris during a May Day parade organised by trade unions to protest against a controversial labour bill.
The German right-wing Alternative fur Deutschland adopts an explicitly anti-Islam policy at a party conference marred by clashes.
Barack Obama stars in spoof retirement video as he nears the end of his second term as President of the United States
A suicide bomber kills two policemen in south-eastern Turkey, in an attack officials blame on a suspected Islamic State militant.
Hundreds of people hold a rare protest in Vietnam against the mass death of fish, which the demonstrators blame on a Taiwanese company.
The US presses Russia over a plan to revive a nationwide ceasefire in Syria, particularly in the embattled city of Aleppo.
Six families get chance to hug as the US-Mexico border in California opens for 20 minutes.
Democrats and Republicans alike are the target of jokes by President Barack Obama in his last White House Correspondents' dinner before leaving office.
Officials in Turkey say two police officers have been killed and more have been injured in a bombing close to the border with Syria.
Iraqi protesters remain camped out in Baghdad's high security Green Zone, a day after they stormed parliament to demand political reform.
People in the Kenyan capital Nairobi are asked to leave their homes near a six-storey building that collapsed in heavy rain, killing at least 12 people.
The American priest and poet Daniel Berrigan - famous for leading defiant protests against the Vietnam War - dies in New York aged 94.
President Obama makes jokes at the expense of Hillary Clinton, Donald Trump and critics of his healthcare plan at his final White House Correspondents' Dinner.