Indian Space Research Organisation ISRO successfully launched India's Reusable Launch Vehicle demonstrator mission (RLV-TD).
Rodrigo Duterte Rodrigo Duterte, the Philippines presumptive president-elect, says he will allow the immediate burial of former kleptocratic dictator Ferdinand Marcos at the Heroes' Cemetery in metropolitan Manila.
Austrian presidential election, 2016 Independent candidate Alexander Van der Bellen, a member of The Greens, is elected President of Austria in a tight contest that was decided by mail-in votes.
Binali Yıldırım Binali Yıldırım is appointed Prime Minister of Turkey after the resignation of Ahmet Davutoğlu amid disagreements with President Recep Tayyip Erdoğan.
Tajikistani constitutional referendum, 2016 The Tajikistani constitutional referendum results in the removal of term limits of incumbent President Emomali Rahmon.
Democratic Party Democratic Governor of Virginia Terry McAuliffe is being investigated by federal prosecutors over campaign contributions, including a foreign contribution from a Chinese businessman, and what they consider to be "suspicious personal finances", as part of a public integrity probe that has lasted for more than a year, according to officials. The United States Department of Justice would not confirm or deny the investigation.
Robocalls Threatening robocalls lead to mass evacuation of students in the United States and United Kingdom. None of the threats were found to be credible but disrupted General Certificate of Secondary Education tests in the UK.
Death of Freddie Gray Baltimore Mayor Stephanie Rawlings-Blake says the city is prepared to respond to any disturbance after today's acquittal.
The Baltimore Police Department says Nero remains on administrative duty while an internal investigation continues.
Judge Barry Williams finds Baltimore, Maryland, Police Officer Edward Nero not guilty of all charges. Nero was accused of second-degree intentional assault, two counts of misconduct in office, and reckless endangerment. Community leaders and elected officials appeal for calm.
World Humanitarian Summit The first-ever United Nations humanitarian summit opens in Istanbul, Turkey, to address the 125-million people crisis, the worst since World War II.
United States–Vietnam relations United States President Barack Obama ends the American arms embargo with Vietnam during his visit in the country.
2015–16 Zika virus epidemic Health officials are concerned about the spread of the Zika virus in Haiti, which suffered the worst epidemic of cholera in recent history following the deadly 2010 Haiti earthquake. The U.S. Centers for Disease Control and Prevention reports there are 2,214 suspected cases as of April 23. But new research indicates the virus has been present since 2014. The actual infection rate remains unknown since the poor, densely populated nation lacks routine data systems that can track and document disease outbreaks.
Cessna 182 At least five people are killed after a Cessna 182 light-aircraft crashes near Port Allen Airport on Hawaii's Kauai island.
Cyclone Roanu Bangladesh reports at least 26 deaths caused by drowning or homes collapsing with 500,000 evacuated during the storm. Maheshkhali Island officials are monitoring a badly damaged 17-mile stretch of mud embankment in danger of collapsing, allowing seawater to flood the communities.
Sri Lanka's Disaster Management Centre reports 92 people are confirmed dead with 109 people still missing from landslides and floods resulting from Roanu. More than 500,000 have been driven from their homes.
Elementary school An overnight fire at Pitakiatwittaya Christian elementary school's dormitory in the northern Chiang Rai Province in Thailand kills 18 girls between the ages of 5 and 12. The other 20 girls sleeping in the dorm are rescued, though five are injured.
Germany Germany's Bayer AG makes an unsolicited bid valued at $62 billion cash to takeover American company Monsanto to create the world's largest agricultural chemical company.
War in Afghanistan The Taliban leadership council reportedly meets to determine a successor to Mullah Akhtar Mansour, killed this weekend during an American drone strike in Pakistan.
Insurgency in Jammu and Kashmir Three policemen are killed in Srinagar, India. Hizbul Mujahideen claims responsibility.
War in Iraq (2013–2017) The Iraqi government begins Operation Breaking Terrorism, aimed at retaking the city of Fallujah, which has been under the control of the Islamic State of Iraq and the Levant group since early 2014.
Yemeni Civil War (2015–present) At least 41 army recruits are killed and 60 others injured in a suicide car bomb attack in Aden, Yemen. The Islamic State of Iraq and the Levant group claims responsibility.
Syrian civil war Reuters reports nearly 150 people are killed and at least 200 wounded in a series of car bomb and suicide attacks in the Syrian cities of Jableh and Tartus in government-controlled territory that hosts Russian military bases. The Islamic State of Iraq and the Levant group claims responsibility.