• Somali Civil War (2009–present)
  • A suicide car bomb targeting Mogadishu's traffic police headquarters kills at least four. Al-Shabaab claims responsibility. (The New York Times) (Reuters)
• Yemeni Civil War (2015–present)
  • Saudi Arabian-led intervention in Yemen
    • Airstrikes by the Saudi-led coalition kill at least 10 in Yemen. (The New York Times)
• Iraqi Civil War (2014–2017)
  • The Pentagon announces the death of Islamic State of Iraq and Syria (ISIL) leader Abu Waheeb and three other militants in an airstrike near the town of Rutba, Iraq. (FOX News) (Reuters)
  • An ISIL car bomb kills at least 50 and injures 54 people in the eastern Iraq city of Baquba. (AAP via News Limited)

• Panama Papers
  • The Panama Papers go online at the International Consortium of Investigative Journalists website. (BBC)

• At least seven people are killed and 30 injured in a bus accident in Ranchi, the capital of the Indian state of Jharkhand. (NDTV)
• The death toll from yesterday's landslide in Taining County in China's Fujian province rises to 14 with 25 still missing, (AP via Daily Mail)

• North Korea–United Kingdom relations
  • Rupert Wingfield-Hayes, the BBC's Tokyo correspondent, was detained in North Korea before being expelled by the government for "speaking very ill of the system". (BBC)

• Philippine general election, 2016
  • Filipino voters head to the polls for a presidential election with unofficial counts showing Davao City mayor Rodrigo Duterte with a commanding lead. (CNN) (AP)
• Austrian Chancellor Werner Faymann resigns after seven and a half years in office; says he lost the backing of his Social Democrats party. (USA Today)
• Impeachment process against Dilma Rousseff
  • Waldir Maranhão, the acting President of Brazil's Chamber of Deputies, says that the impeachment vote in that chamber should be annulled due to procedural irregularities and the voting process be held again. The Federal Senate is due to start voting on whether to impeach President Rousseff later this week. (Al Jazeera)
  • Later Monday, Maranhão reverses his earlier decision to annul the Chamber of Deputies April 17 vote for impeachment. (AP)

• A transit of Mercury occurs, visible from Africa, the Americas, Europe and most of Asia. (BBC) (Daily Mail) (The New York Times)

• 2015 FIFA corruption case
  • UEFA President Michel Platini, who had been suspended by the FIFA Ethics Committee last fall, announces his resignation following the Court of Arbitration for Sport decision that let stand his ban, shortened to four years which corresponds to the duration of his remaining time in office. The court ruled that Platini was guilty of conflict of interest for taking a $2 million payment from FIFA approved by Sepp Blatter in 2011. (USA Today)