• American-led intervention in Syria
  • A senior Iraqi intelligence official, who is also a Syrian activist leader, says Islamic State of Iraq and the Levant commander Omar al-Shishani (Omar the Chechen, real name Tarkhan Tayumurazovich Batirashvili) died of wounds suffered in a March 4 U.S. airstrike near the Syrian town of Al-Shaddadah. The U.S. State Department offered up to $5 million for information on his whereabouts. Amaq news agency, which supports ISIL, says Shishani is neither dead nor hurt. (New York Times) (Chicago Tribune) (Reuters via Swiss Broadcasting Corporation)
• 2016 Brussels police raids
  • Belgian security forces hunt gunmen linked to the November 2015 Paris attacks following a raid on a house in Brussels which left four officers wounded and one suspect dead after an exchange of gunfire. Roads have been blocked off in the Belgian capital's southern suburb of Forest as one or more gunmen remain at large. (The Independent) (Irish Times)
• Saudi Arabian-led intervention in Yemen
  • Airstrikes reportedly kill at least 41 people and wound 75 others in Yemen's northern Hajjah Governorate. (Reuters)

• Pope Francis announces that Mother Teresa will be canonized on September 4. (The Guardian)

• Brookfield Asset Management Inc and Qube Holdings join forces to make a A$ 9.1 billion bid for Australian freight logistics company Asciano Limited. (Bloomberg)
• Linn Energy, an oil-and-gas producer with about $10 billion in debt, says a bankruptcy filing may be unavoidable. The company was founded in 2003 and had its initial public offering in 2006. (Reuters)

• 2016 Ecuadorian Air Force Arava crash
  • An Ecuadorian Air Force IAI Arava 201 crashes near Shell Mera in a mountainous part of eastern Ecuador during military exercises, killing all of the 22 soldiers on board. (BNO News) (Aviation Safety Network)
• The entire Washington D.C. Metro system will shut down for 29 hours beginning at midnight Wednesday for an emergency investigation after an electric cable caught fire on Monday. (The Washington Post) (NBC4 Washington)
• A fire severely damages the 16th century Wythenshawe Hall, near Manchester, England. (BBC)
• A deadly fire breaks out at a rehabilitation center for addicts in Sterlitamak, Bashkortostan, a Republic of Russia, killing 12 people. An investigation was immediately launched. (Radio Free Europe/Radio Liberty)

• The U.S. Centers for Disease Control and Prevention issues final recommendations urging doctors to try something besides an opioid when first treating pain, and if an opioid drug, such as hydrocodone or oxycodone, is the best choice, start with the lowest possible dose. (The Washington Post) (NBC News)

• Burundian unrest (2015–2018)
  • The European Union suspends direct financial aid to Burundi after concluding that the Burundian authorities had not done enough to find a political solution to the ongoing conflict occurring in the country. (The Guardian)
• Argentina–China relations
  • Argentina's coastguard says it has sunk a Chinese fishing trawler that was operating illegally within its territorial waters. The coastguard says it rescued four of the trawler's crew while others who abandoned ship were picked up by another Chinese vessel shadowing the pursuit. (Reuters via Yahoo! News)
• The parliament of the Netherlands passes a resolution calling on the government to stop selling arms to Saudi Arabia, citing ongoing "violations of humanitarian law" in Yemen. (Middle East Eye)

• Shooting of Michael Brown, Ferguson unrest
  • The Ferguson, Missouri, city council, after last month voting to change the terms of the agreement, reverses course and unanimously (6-0) agrees to accept a U.S. Justice Department overhaul of its troubled police force and municipal courts. This avoided a likely expensive legal battle with the federal government which had filed suit against the city following last month's vote. (CNN)

• 2016 United States presidential election
  • Voters in the U.S. states of Florida, Illinois, Ohio, Missouri, North Carolina and the commonwealth of the Northern Mariana Islands head to the polls for Republican and Democratic Party primaries that the media has dubbed "Super Tuesday 2". (AFP via Yahoo! News)
  • Donald Trump wins primaries in Illinois, North Carolina, Missouri and Florida while John Kasich wins in Ohio. (NY Daily News) (Decision Desk HQ) (CNN), (USA Today) (NBC News)
  • Donald Trump wins the Northern Mariana Islands caucus. (Politico)
  • Hillary Clinton wins the Democratic primaries in Florida, Illinois, Ohio, Missouri and North Carolina. (Fox News), (Washington Post) (NBC News) (NBC News Live Blog)
  • Marco Rubio suspends his presidential campaign following a disappointing defeat in his home state of Florida. (The New York Times)
  • North Carolina's controversial voter ID law is in effect for the first time. Voters without these new ID credentials, including voters with a “reasonable impediment” to obtaining an ID, can cast a provisional ballot. Citizens (2,567) faced this problem during early voting, including U.S. Senator Richard Burr who, because his driver's license was stolen, was without ID. In addition, votes for congressional candidates for House seats don't count because the state's congressional district map was redrawn after the ballots were printed. The actual congressional primary is scheduled for June 7. (WRAL)(The Nation via Moyers & Company) (NPR) (Charlotte Observer) (The New York Times)
• Nigerien general election, 2016
  • The government will release opposition candidate Hama Amadou from prison due to health issues. Amadou is facing off against incumbent President of Niger Mahamadou Issoufou in the second round of voting on Sunday. (Reuters)
• The Myanmar Assembly of the Union, or parliament, selects Htin Kyaw as the new President. Kyaw, a confidant of Aung San Suu Kyi, will be the first civilian president in decades. Suu Kyi, a Nobel Peace Prize recipient, is constitutionally barred from the office. (Indian Express) (ABC News Australia)
• The Obama administration announces it is cancelling plans to permit drilling for oil and gas off the southeastern U.S. Atlantic coast. A new plan involves 10 potential lease sales in the Gulf of Mexico and three off the coast of Alaska. (USA Today) (The Island Free Press)

• Andrew Wiles wins the 2016 Abel Prize for his solution to Fermat's Last Theorem. (Nature)
• Scientists, in the Proceedings of the National Academy of Sciences scientific journal, report that so-called fairy circles are caused by the plants themselves, which have self-organized. Michael Cramer and Nichole Barger suggested this in 2013. (The Washington Post) (PNAS) (The Atlantic)