European Council President Donald Tusk has said that cyber attacks and hybrid war are currently one of the biggest challenges for the Eastern Partnership countries.

"Today we are witnessing some consequences of interventions, which are in fact against this set of [European] values. This is also a topic for discussions about the future of the Eastern Partnership, because one of the biggest threats today is a real threat when it comes to cyber attacks, fake news, hybrid war," he said at a press conference after the fifth Eastern Partnership summit in Brussels on Friday, November 24.