A 71-year-old Ukrainian citizen who was accused by Russian authorities of espionage and participation in a terrorist organization has died in pretrial detention in the Russian city of Rostov-on-Don, the Memorial human rights monitor said on February 11. Memorial said little is known about Viktor Demchenko. Russian state news agency TASS, citing law enforcement agencies, reported that Demchenko died in a Rostov prison hospital from a stroke on December 31. Several Ukrainian citizens living in Russia have been accused of espionage by Russia following the start of the Kremlin’s invasion of Ukraine. To read the original story by Current Time, click here.