• 2014 pro-Russian unrest in Ukraine:
  • At least 11 Ukrainian Army soldiers are killed and 30 injured when pro-Russian separatists attack a military checkpoint. (AP via Time)
  • Luhansk People's Republic in eastern Ukraine declares martial law and asks Russia to send peacekeeping troops to protect civilians. (Kyiv Post)
  • The unrecognised Federal State of New Russia confederation is declared and agreements were signed between leaders of two self-proclaimed republics.(Ukrainian Policy) (Voice of Russia)
• Korean maritime border incidents:
  • South Korean media claims that North Korea fired shells in a disputed area near a Republic of Korea Navy ship. (BBC News)
• May 2014 Ürümqi attack:
  • An explosion occurs in the city of Ürümqi, the capital of China's far-western Xinjiang Uyghur Autonomous Region, resulting in at least 31 deaths and 91 injuries. (BBC News) (RTÉ)

• Marathon Oil agrees to buy Hess Corporation's retail gas stations for $2.87 billion. (AP via ABC)
• Anglo-Dutch consumer goods company Unilever agrees to sell the brands Ragú and Bertolli to Japanese sauce producer Mizkan for $2.15 billion. (Bloomberg)
• Nest Labs announces plans to recall 440,000 smoke alarms to fix a problem that could cause the alarms to not go off immediately after detecting smoke. (AP via ABC)

• Prime Minister of Vietnam Nguyễn Tấn Dũng says that his government is considering legal action against China over an oil rig that was deployed in waters that Vietnam claims. (Reuters)
• Negotiations between Iran and Russia regarding the building of two additional nuclear reactors at Iran's Bushehr power plant take place. (Reuters)

• A massive law enforcement operation in New York City, United States, and the surrounding areas leads to 71 arrests for child pornography offenses. (Al Jazeera)
• The Dominican senate unanimously approves a bill which will set up a system to grant citizenship to Dominican-born children of immigrants. (BBC News)
• Activision Blizzard files papers with a California court, calling for unidentified programmers that created cheats for Starcraft II to be made to compensate them for copyright infringement. (BBC News)

• 2014 European Parliament election:
  • Voters in the European Union go to the polls for a multi-day European Parliamentary election. Voters in the United Kingdom and the Netherlands vote today. (Debating Europe) (European Union)
• 2013–14 Thai political crisis:
  • Thailand's army chief Prayuth Chan-ocha announces a coup d'état, saying the military is taking control of government. (BBC News)
• United Kingdom local elections, 2014
  • Voters in the United Kingdom go to the polls for local elections with the United Kingdom Independence Party making strong gains. (BBC News)

• The International Institute for Species Exploration announces the "Top 10 New Species" of 2013. (Red Orbit)

• In cricket, former New Zealand player Lou Vincent and Pakistan A team player Naved Arif are charged with match fixing while playing for Sussex County Cricket Club in 2011. (New Zealand Newswire via Yahoo! 7 sport)