Ukrainian prime minister Denys Shmyhal stated at a briefing that "The Russians have practically destroyed all of our thermal power plants that were around Kharkiv, that supported Kharkiv. We are bringing in mobile boiler houses there, small, one-megawatt ones,"
https://www.youtube.com/watch?v=cWwDmmOVaeo

Reports from Local Ukrainian sources suggest that Russian forces have advanced into northern Hirnyk.

This comes as Russian forces made a sudden localised breakthrough to the south of Ukrainsk, and are now assaulting both Ukrainsk and Hirnyk simultaneously. Hirnyk lies on the tactical heights and is strategically important as it will allow for the Russians to use it as a staging ground to get behind the Ukrainian salient southwest of Krasnohorivka.

It will also give the Russians fire control over the surrounding areas and increased surveillance over Ukrainian formations.

As for the advance itself, Russian infantry likely advanced from positions in the forests to the north and approached the northern outskirts of the town through the open fields. It is reported that the original attacks failed, but it appears that following a regrouping and a short operational pause, the Russians went on the offensive again and captured positions in the northern houses.

This was reportedly done with small groups of infantry which were scattered among the houses. This tactic works well for the Russians as it forces the AFU to use up limited artillery on small targets in multiple different places at once, unless of course they choose to use FPV drones.

More reliable reports on this advance should be released in the coming hours, so I will update you if/when that happens.

Russian forces have likely advanced into eastern Ukrainsk and taken up positions in the centre of the town.

Reports from multiple reliable indicate that this advance took place from the village of Lisivka. Following a Ukrainian withdrawal from the village, over the open fields and into the eastern buildings of Ukrainsk, the Russians followed the AFU and managed to break through their positions.

In addition to this, Russian forces have reportedly captured the local school in the south of the town and advanced to the high-rise buildings to the north.

This puts any Ukrainian formations still in the defensive fortification in the blue at a significant risk of encirclement as different Russian assault groups plan to meat up to the northwest.

Geolocated footage confirms what was already likely:
Russian forces have captured the village of Vodyane in the Vuhledar direction.

For more details on the assault and how it may have played out, check out the post I replied to.

Russian forces also captured the Pivdennodonbaska 1 coal mine and have reportedly taken the adjacent terykon (industrial waste heap).

Geolocated footage indicates that Russian forces advanced in the Selydove direction and captured the village of Marynivka.

This advance may have taken place around around a week and a half ago as that is when the first reports of Marynivka's capture surfaced.

Now that this village has fallen, it will simplify any future Russian offensive operations in and around Selydove, as this salient acted as a blocker to future progress to the north of the city. We might see advanced along the E50 highway in the near future once Russia consolidates control over their positions in and around Marynivka.

Geolocated footage and reliable reports indicate that Russian forces have launched a counteroffensive in Kursk Oblast and are beginning to retake their lost territory.

Starting off with confirmed Russian advances (yellow), a column of 8 Russian armored vehicles including at least 5 tanks advanced from the town of Korenevo and down the road heading south to the international border with Ukraine. They laid suppresive fire on Ukrainian treeline positions north of Snagost, before entering the village itself and firing on the houses.

Shortly after, reliable sources confirmed that the village, along with the ones to the west were recaptured by Russia.

As for likely advances, reliable sources reported that Russian forces advanced and captured the villages of Gordeevka, Vnezapnoe, Byakhovo, Viktorovka, and Apanasovka. This might have been the same mechanised assault, or it could have been a separate one from Novoivanovka and/or Kulbaki.

There are also reports that Russian forces have advanced and captured the village of Obukhovka, driving a wedge through Ukrainian positions.

Geolocated footage indicates that Russian forces have advanced in the Kupyansk direction.

Over the past few weeks, Russian infantry have been slowly grinding through Ukrainian positions and trench fortifications around the village of Pishchane. Over an unknown period of time, Russian forces were able to advance northwest of Pishchane, along the treelines that run from east to west, and seized positions on the tactical heights in a treeline running from north to south.

This advance along the tactical heights will support a direct assault on Ukrainian positions in and around the village of Kolisynkivka which lies on the eastern bank of the Oskil river.

As the route to Kolysynkivka is in the lowlands, the Russians will either choose to attack through the lowlands and enter the village head on, or attempt to flank it from the high ground in the north, allowing for a downhill battle as they approach the Oskil river.

New Russian Geran drones have just been launched from Kursk Oblast. 3-5 are flying into Sumy Oblast. This is an odd time for that...

~4 Russian Geran drones from Kursk Oblast are flying through Okhtyrka district of Sumy Oblast in the direction of Poltava Oblast on a southwestern course.

Russian Shahed drone flying over Dnipropetrovsk Oblast. We don't see videos like this very often.

Here's a better video.

Geolocated footage indicates that Russian forces made a small advance in the fields north of Stelmakhivka in Luhansk Oblast, advancing along the main treeline on the tactical heights before possibly branching off onto the other two adjacent treelines.

This advance is likely a couple of weeks old, but visual confirmation of it only just came out.

The Geran drones are now flying in the direction of Cherkasy Oblast. Western course.

Originally I had a feeling that Tu-95s would take off, but I doubt it now. Usually if it's at this time of day, they would take off around half an hour ago.

2 Ukrainian UAVs out of an unknown number were reportedly destroyed in Murmansk Oblast of Russia. This comes as temporary restrictions were placed on the operation of two airports in region.

Unconfirmed reports of explosions at Olenya airfield, Murmansk Oblast. There are several Tu-95 bombers stationed there.

The bridge in the west of Pokrovsk which has been hit by so many Russian missiles has finally collapsed. This will significantly hamper Ukrainian logistics in the Pokrovsk direction.

Russian Geran drones targeted Konotop, Sumy Oblast over and over again last night. It appears that at least one of them got through Ukrainian air defences there.