On the evening of 17 September, Russian troops attacked the city of Nizhyn, Chernihiv region, with kamikaze drones. The attack killed a rescuer of the SES.

A Russian assault group fell into a trap set by fighters from the 425th Separate Assault Regiment "Skelia". Ukrainian soldiers captured 17 occupiers during a combat sortie.

European governments have called on US President Donald Trump to tighten sanctions against Russia, but he has responded with counter-demands to stop purchases of Russian oil and impose duties on India and China.

During a meeting with US President Donald Trump, King Charles III of Great Britain mentioned support for Ukraine.

Russian troops have advanced in three settlements in Kharkiv and Zaporizhzhia regions.

European countries and the United States have failed to reach an agreement on imposing tougher sanctions against Russia.

Russian forces are operating in the northern part of Kupiansk; reports of fighting in the city center are inaccurate.

Russian forces have abandoned their offensive in the Sumy direction due to heavy losses of personnel and equipment.

President of Ukraine Volodymyr Zelenskyy has said he has two key plans: to end the war or to secure additional funding to cover expenses.

Lviv Mayor Andrii Sadovyi has said that a listening device was discovered in his office.