Oleksandr Syrskyi said Russian forces had regrouped after suffering losses

Here’s a roundup of the key developments from the day so far:

Fighting in Avdiivka on the eastern frontline enters a fifth day, as Russia continues to deploy new forces in an attempt to surround the city, according to Vitaliy Barabash, the head of its military administration.

Russia’s defence ministry says its forces shot down two Ukrainian drones over the Black Sea near the southern resort city of Sochi on Saturday morning. The city’s mayor, Alexei Kopaigorodskyi, said there had been no casualties or damage and that the situation was under control.

A top Ukraine general said fighting in the north-east had “significantly worsened” as daily Russian attacks continued.

Russia has detained three lawyers of the jailed opposition leader Alexei Navalny and raided their homes, aides said, a step that comes as pressure on the Kremlin’s critics increases. The move was an attempt to “completely isolate Navalny”, his ally Ivan Zhdanov said on social media.

The US has claimed North Korea delivered more than 1,000 containers of military equipment and munitions to Russia for the war in Ukraine. The White House national security council spokesperson, John Kirby, said the US believed Kim Jong-un was seeking sophisticated Russian weapon technologies in return for munitions to boost North Korea’s nuclear programme.

Vladimir Putin dismissed the idea that Russia damaged a gas pipeline between Finland and Estonia and suggested such claims were made up to divert attention from what he said was a western attack on Nord Stream.

EU leaders meeting later in October will demand “decisive progress” on using Russian assets frozen by sanctions to help Ukraine, according to their draft statement.

The Ukrainian president, Volodymyr Zelenskiy, and the Dutch prime minister, Mark Rutte, while visiting the Black Sea port of Odesa on Friday, vowed to improve Ukraine’s air defences and to increase the security of a “humanitarian corridor” for grain exports.