Kyiv launches fresh drone assault on Putin's oil refineries inside Russia - Volgograd governor Andrei Bocharov says a fire temporarily broke out after a Ukrainian drone attack

President Volodymyr Zelensky of Ukraine expressed condolences to family and friends of those killed in a Russian strike that targeted an apartment block in Sumy, and stressed the importance of continued international pressure on Russia over such terror.

The death toll from the Russian drone strike on a multi-story residential building in Sumy has risen to nine, Ukrainian Interior Minister Ihor Klymenko said.

RFERLs Live Briefing gives you all of the latest developments on Russias full-scale invasion of Ukraine Western military aid to Kyiv worldwi

Ukrainian officials said Thursday a Russian drone attack killed at least four people in the northeastern city of Sumy. The regional state administration in Sumy said a drone hit a high-rise residential building, and that the attack also injured nine people.

Here are the key developments on the 1,072nd day of Russia’s full-scale invasion of Ukraine. Here is the situation on Friday, January 31:

The Sumy Regional Prosecutor's Office announced this on Facebook, Ukrinform reports. “As of 11:00, four people were killed in an enemy attack on a high-rise building: two couples - a 74-year-old man and his 69-year-old wife, a 65-year-old man and his 64-year-old wife,” the report says.

Emergency teams continue to remove debris, conduct rescue operations at site, says State Emergency Service of Ukraine - Anadolu Ajansı

Ukraine launches second major drone attack against Russian oil refineries in a week - Intelligence sources say one refinery had been hit by four Ukrainian drones, causing ‘significant damage”

On the night of Friday, January 31, the Russian army launched 102 kamikaze drones at Ukraine. Ukrainian air defense forces operated in 12 regions of the country, according to the Air Force of the Armed Forces of Ukraine.

On August 6, Kyiv began the military operation into Kursk, which appeared to take Russian President Vladimir Putin and even Ukraine's allies by surprise. Kyiv later announced it had seized 500 square miles at what was then the lightly-defended border of the Russian region.