Armed conflicts and attacks

• Middle Eastern crisis
  • 2026 Iran war
    • 2025–2026 Iran–United States negotiations
      • Islamic Revolutionary Guard Corps officer Esmail Qaani says that the ceasefire between Iran and the United States depends on the ceasefire in Lebanon, and that there will be "no peace in the region" until Israel fully withdraws beyond the internationally recognized border of Lebanon. (Al Jazeera) (NPR)
  • 2026 Lebanon war
    • 2026 Israel–Lebanon ceasefire
      • Secretary-general of Hezbollah Naim Qassem rejects a ceasefire without an Israeli withdrawal, saying that Hezbollah will fight as long as the occupation continues, and rejects disarmament. (Al Jazeera)
      • French president Emmanuel Macron says that the U.S. and France plan to establish a ceasefire coordination mechanism, and calls on Hezbollah to give its weapons to the Lebanese military. (Al Jazeera)
    • A Serbian soldier is killed and two others are wounded after the artillery shelling of a UNIFIL base near Marjayoun in southern Lebanon. (RTÉ)
• Somali Civil War
  • Constitutional crisis in Somalia, Controversies of Hassan Sheikh Mohamud
    • Clashes in Mogadishu that started from the previous day continue as fighting breaks out near the residences of former president Sharif Sheikh Ahmed and former prime minister Hassan Ali Khaire. (NYT)
    • Khaire accuses de facto president Hassan Sheikh Mohamud of ordering a targeted military assault to eliminate opposition, while defence minister Ahmed Moalim Fiqi accuses both Sharif and Khaire of orchestrating a coup attempt to destabilise Somalia. (Garowe Online)

Disasters and accidents

• At least four people are killed and over 13 others are injured in a fire at a private hospital in Muzaffarpur district, Bihar, India. (NDTV)

International relations

• China–New Zealand relations, New Zealand–Taiwan relations
  • China imposes travel bans on New Zealand MPs Ingrid Leary, Laura McClure, Simon O'Connor, and Duncan Webb following a visit to Taiwan, prompting New Zealand's foreign ministry to reaffirm the country's One China policy. (AFP via UCA News)

Law and crime

• Gun violence in the United States
  • An 18-year-old is killed and three others, including a child, are wounded after a shooting at a high school graduation ceremony in Fairfield, California. (CBS)

Science and technology

• North Korea and weapons of mass destruction
  • North Korea unveils a new facility plant that would inspect nuclear weapons and produce nuclear weapon materials. (AP)

June 4: Flag Day of the Finnish Defence Forces in Finland; Trianon Treaty Day in Romania (1920)

• 1411 – King Charles VI of France granted a monopoly to the people of Roquefort-sur-Soulzon for the ripening of Roquefort cheese (example pictured).
• 1561 – The spire of Old St Paul's Cathedral in London was destroyed by fire.
• 1913 – Emily Davison, an activist for women's suffrage in the United Kingdom, was fatally injured after being trampled by a horse owned by King George V at the Epsom Derby.
• 1989 – The People's Liberation Army suppressed the Tiananmen Square protests in Beijing, leaving hundreds of people dead and wounded.
• 2004 – In Granby, Colorado, U.S., Marvin Heemeyer went on a rampage with a modified bulldozer over a zoning dispute, destroying several buildings before dying by suicide.