Zelenskyy: At least 10 'torture sites' found in liberated areas of Kharkiv

Ukrainian President Volodymyr Zelenskyy says at least 10 locations have been found in the liberated areas of the eastern region of Kharkiv that are believed to have been used for torture.

Zelenskyy says in a video released on Saturday that a train station was among the "torture sites." He also claims tools for electric torture were found.

The president condemned Russia, saying torture appears to have been a widespread practice in the territory occupied by the Russian forces.

Ukrainian authorities have opened an investigation after a mass burial site was found in the key city of Izyum in Kharkiv.

Ukrainian forces have recaptured much of the eastern region, and are stepping up their counteroffensive in the south.

The Ukrainian military wrote on social media on Saturday that the Russians are preparing retreat routes in the southern region of Kherson.

Meanwhile, the Russian defense ministry said on Saturday that its forces had carried out attacks in regions including Kherson, as well as Donetsk in the east.

Russian President Vladimir Putin had insisted that his military force still has leeway, saying that Russia has only been using its contract army, which is only a part of the country's military force.