It is probably only a matter of time before the Russian troops take full control of Kurakhove in the Donetsk region in eastern Ukraine, said a military expert in a television interview with China Media Group (CMG) aired on Tuesday.

A former British Army soldier was reportedly captured by Russian forces while fighting alongside Ukrainian soldiers in the Kursk region of the country.

The Russian Investigative Committee charged James Scott Rhys Anderson with "terrorism" and "mercenarism," following its long-standing practice of persecuting foreign volunteers that end up in Russian captivity.

Russia's military captured a British national fighting with Ukrainian troops who have occupied part of Russia's Kursk region, according to reports Monday, as Moscow began daylight drone attacks on civilian areas of Ukraine and its ground forces accelerated gains along parts of the front line.