Viktor Trehubov, head of the communications department for the United Forces group, stated this, as quoted by Radio Liberty."As of now, an operation is underway to eliminate pockets of Russians in the northern part of the city. I wouldn't say it's very easy, but considering they are cut off from main supplies and cannot effectively receive reinforcements, they are in a much worse situation than the Ukrainian defenders were even at their worst moment," he informed.At the same time, Trehubov emphasized that urban warfare is always difficult. According to him, the Defense Forces have interrupted the enemy's lines of communication, which now only occur via drones."Attempts to resupply or drive vehicles into the northern districts are effectively blocked by Ukrainian strikes. That is, they cannot effectively supply the troops in the city, but they can drop certain products or ammunition to them," added the head of the communications department of the United Forces group.On November 15, Zelenskyy stated that the Russian troops had failed to capture Pokrovsk and Kupiansk according to Putin's "schedule."