KRAMATORSK: Russia said on Tuesday it was carrying out `massive strikes` across the Ukrainian front line and accused Ukrainian soldiers of abusing civilians in territories recaptured in a dramatic counter-offensive.

Moscow`s retaliation came after it was forced to pull back its troops from swathes of the northeast, particularly in the Kharkiv region, following Kyiv`s lightning assault to wrest back terrain.

The territorial shifts marked one of Russia`s biggest setbacks since its troops were repelle d f rom Kyiv in the earliest days of the nearly sevenmonth war, yet Moscow signalled it was no closer to agreeing to a negotiated peace.

`Air, rocket and artillery forces are carrying out massive strikes on units of the Ukrainian armed forces in all operational directions,` the Russian defence ministry said in its daily briefing on the conflict.

`High-precision` strikes have also beenlaunchedonUkrainianpositions aroundSlovianskandKonstantinovka in the eastern Donetsk region, itadded. The Kremlin accused Kyiv`s army of abusing civilians in territory it had recaptured.

President Vladimir Putin`s spokesman said that in the Kharkiv region, reports were emerging of `outr ageous` treatment of civilians.

`There are a lot of punitive measures... people are being tortured, people are being mistreated and so on,` Dmitry Peskov told journalists.

Russia`s allegations came after Ukrainian authorities claimed to have found four bodies of civilians with `signs of torture` in the recaptured eastern village of Zaliznychne.

`Too early to tell` Residents reported that Russian troops had killed villagers, the regional prosecutor`s office said, announcing a war crime probe.

Ukrainian forces launched their counter-offensive in early September, seemingly catching Russia`s military off guard. Images posted by the Ukrainian military showed crates of munitions and military hardware scattered across territory abandoned by Russian forces.

Around the north-eastern town of Balakliya, AFP journalists saw evidence of fierce battles, with buildings destroyed or damaged and streets mostly deserted.

By Monday, President VolodymyrZelensky said that Ukraine`s forces have retaken a total of 6,000 square kilometres (2,320 square miles) from Russian control. In the northeast, dozens of areas including the cities of Izyum, Kupiansk and Balakliya, have been retaken, Ukraine said.

Iranian-made drone shot down Ukraine`s defence ministry said on Tuesday it had shot down an Iranian-made Shahed-136 drone used by Russia`s armed forces in the northeastern region of Kharkiv, the first time Kyiv claimed to have eliminated one of the devices.

Ukraine and the United States have accused Iran of supplying drones to Russia, something Tehran has denied. The defence ministry posted images of what appeared to be parts of a destroyed drone with `Geran-2` written on the side in Russian. The wingtip appeared to match that of a Shahed-136.

It said the drone, or unmanned aerial vehicle (UAV), had been `eliminated`nearKupiansk, atown in the Kharkiv region recently recaptured by Ukraine.

Military experts have said Iranian drones would be useful to Russia for both reconnaissance and as loitering munitions that can bide their time in locating and engaging suitable targets.-Agencies