Armed conflicts and attacks

• Russian invasion of Ukraine
  • At least two people are killed and 21 others are injured in Russian strikes across Ukraine. (AP)
• Aftermath of the 2023 Nagorno-Karabakh clashes
  • Delegates of Azerbaijan and Artsakh meet in the Azeri city of Yevlakh. No formal agreement is adopted after two hours of talks. (Daily Sabah)

Business and economy

• Rupert Murdoch announces that he will step down as the chairman of Fox Corporation and Fox News. (NBC News)

Disasters and accidents

• Four people are killed and five more injured during an explosion at a gas pipeline in Vrancea County, Romania. (Reuters)

Armed conflicts and attacks

• Nagorno-Karabakh conflict
  • 2023 Nagorno-Karabakh clashes
    • Armenian separatist forces in Nagorno-Karabakh surrender, accepting a Russian-proposed ceasefire with Azerbaijan and agreeing to vacate combat positions, disarm, and relinquish all ammunition and military equipment. (BBC News) (Reuters) (APA.az)
    • Peace talks between Azerbaijan and the separatists are expected to begin tomorrow in Yevlakh. Russia's peacekeeping contingent will assist in coordinating the ceasefire. (DW)
    • Thousands of Artsakh residents gather at the Stepanakert Airport, where some Russian peacekeepers are stationed, seeking evacuation. (CTV News)
• Colombian conflict
  • A car bomb explodes near a police station in Timba, Cauca Department, Colombia, killing two people and wounding two others. (La Prensa Latina)

Disasters and accidents

• Three members of the South African Navy are killed and five others are rescued when large waves hit a submarine near Kommetjie, Western Cape, South Africa. (News24)

International relations

• Armenia–United States relations
  • United States and Armenian forces complete a joint military exercise in Armenia, which was not affected by the 2023 Nagorno-Karabakh clashes. (Al Jazeera)
• Russian invasion of Ukraine, Poland–Ukraine relations
  • Polish Prime Minister Mateusz Morawiecki announces that Poland will stop supplying Ukraine with weapons, amid tensions between the two countries over the former's import ban on Ukrainian agricultural products. (CNN)
  • Vasyl Zvarych, Ukrainian Ambassador to Poland, is summoned by the Polish Foreign Ministry to convey its strong protest over the statement of President Volodymyr Zelenskyy at the United Nations General Assembly. Zelenskyy's statement that some European countries' actions indirectly help Russia, drew condemnation from Poland. (Ukrainian News)
• Nuclear program of Iran, Iran–Saudi Arabia relations
  • Saudi Arabian Crown Prince in a Fox News interview warns that his country "will have to" obtain a nuclear weapon if regional rival Iran does. (Al-Monitor)

Science and technology

• The oldest known wooden structure, a 476,000-year-old log structure, is discovered at the Kalambo Falls in Zambia according to a study from the Nature journal. (Live Science)

September 21: International Day of Peace

• 1170 – Norman invasion of Ireland: English and Irish forces conquered Dublin, forcing Ascall mac Ragnaill, the last Norse–Gaelic king of Dublin, into exile.
• 1823 – According to Joseph Smith, he was first visited by the Angel Moroni, who would guide him to the golden plates that became the basis of the Book of Mormon.
• 1918 – World War I: The Battle of Nazareth ended with the British Empire victorious over the Ottomans.
• 1958 – After over fourteen years of construction, the first section of Interstate 80 in Iowa (pictured) opened in the Des Moines metropolitan area.
• 2001 – Several British Muslim youths in Peterborough, England, murdered 17-year-old Ross Parker, leading to debate over whether the British media failed to cover racially-motivated crimes with white victims.