2017 Spanish constitutional crisis The Prime Minister of Spain, Mariano Rajoy, activates Article 155 of the Constitution of Spain. This will put Catalonia under the direct control of the central government, removing the regional government and completely limit the power of the Parliament of Catalonia. The regional police and media will also be under its control.
2017 Iraqi–Kurdish conflict Iraqi forces complete the takeover of Kirkuk Governorate, which is outside the autonomous zone accorded by the Constitution of Iraq. Grand Ayatollah Ali al-Sistani calls for the state to protect Kurds in northern Iraq.
Santiago Maldonado case Parties in Argentina halt their election campaigns due to the appearance of a body thought to be Santiago Maldonado, an indigenous rights activist who disappeared at the beginning of August 2017.
Czech legislative election, 2017 The three next largest parties become the Civic Democratic Party, the Czech Pirate Party, and the far-right Freedom and Direct Democracy, as support for the governing Czech Social Democratic Party collapses.
The ANO movement of billionaire Andrej Babiš wins a sizeable plurality of seats in the Chamber of Deputies, but falls short of a majority.
2017 Madagascar plague outbreak The death toll from an outbreak of plague in Madagascar nears 100. So far, there have been 911 cases recorded.
Landslides in Malaysia At least two people are dead and twelve missing after a landslide on the Malaysian tourist island of Penang.
Helicopter accidents and incidents A helicopter carrying five people crashes into Kenya's Lake Nakuru.
2017–18 UK and Ireland windstorm season Storm Brian, the third windstorm of the season, causes severe flash flooding in Ireland and coastal flooding in parts of England and Wales, although disruption is not as severe as initially expected.
Insurgency in the Sahel Gunmen coming from Mali kill 13 gendarmes and injure five on a base in western Niger.
War in Somalia The death toll in Somalia's deadliest terror attack rises up to 358, making it the fifth-deadliest terror attack worldwide.