MOSCOW, April 7 (RIA Novosti) – Russian prosecutors will hand over to Poland on Thursday another batch of documents on the Katyn massacre following a request by Polish investigators.
The Katyn massacre, in which thousands of officers, police and civilians taken prisoner during the 1939 partitioning of Poland by the Soviet Union and Nazi Germany were killed, remains one of the most painful issues in Russian-Polish relations.
Last year, Russia handed over to Poland hundreds of files of its investigation into the killing of over 21,000 Poles in 1940.
The files contained additional lists of Polish servicemen held captive by the Soviet secret police, interrogation and forensic reports, medical records, burial certificates and other data related to the massacre.
The Soviet Union always blamed th…