• Saudi Arabia–United States relations, Iran–Saudi Arabia relations, Iran–Saudi Arabia proxy conflict
  • U.S. President Donald Trump bypasses Congress to approve the sale of billions of dollars' worth of weapons to Saudi Arabia, citing Iranian threats against the latter. (BBC News)

• 2019 Cannes Film Festival
  • The South Korean film Parasite wins the 2019 Palme d'Or, the Cannes Film Festival's top prize. (CNN)

• Tornadoes of 2019
  • Two people are killed and several are missing due to a tornado in the U.S. state of Oklahoma. (ABC News)
• A boat sinking on Lake Mai-Ndombe in western Democratic Republic of the Congo kills at least 45 people with 200 passengers still missing. The vessel was carrying more than 400 people, the majority of whom were teachers going to collect their salaries. (BBC News)

• 2019 European Parliament election
  • Citizens in Latvia, Malta, Slovakia and the French overseas territories head to the polls to vote in the latest European Parliament election. Additionally, voting in the Czech Republic continues for the second day. (European Parliament)
• Hundreds of counter-protesters show up and protest against an estimated nine attendees of a planned rally by a Ku Klux Klan-affiliated group in Dayton, Ohio. (CBS News)

• Binary Aten asteroid (66391) 1999 KW4 and its minor-planet moon make their closest-ever recorded flyby of Earth at 3.2 million miles away. The asteroid will approach even closer at 0.0155 AU (2,320,000 km) from Earth in 2036, and is the largest asteroid to approach Earth until (4953) 1990 MU in June 2027. (Newsweek)

• 2019 NBA playoffs
  • The Toronto Raptors defeat the Milwaukee Bucks in Game 6 and advance to the NBA Finals for the first time in the team's history. (CBC) (Sports Illustrated)