OSLO, Dec 10 (Reuters) - People in positions of power in Russia are actively promoting the idea of war, and conflict with Ukraine is now distinctly possible, Nobel Peace Prize laureate Dmitry Muratov said on Friday. Receiving his award at Oslo City Hall, Muratov said it was common in Russia to think that politicians who avoided bloodshed were weak, while threatening war was "the duty of true patriots". Muratov, editor-in-chief of Russian newspaper Novaya Gazeta, won the 2021 award jointly with Maria Ressa of the Philippines, co-founder of news site Rappler, in recognition of their fight for freedom of expression. read more "The powerful actively promote the idea of war," he said. "Moreover, in (the) heads of some crazy geopoliticians, a war between Russia and Ukraine is not something impossible any longer." U.S. officials have said Russia could soon invade Ukraine following a build-up of troops near the Ukrainian border. Moscow has denied it is planning an invasion. read more Muratov also said journalism in Russia was going "through a dark valley", with over a hundred journalists, media outlets, human rights defenders and non-governmental organisations having been branded as foreign agents. "In Russia, this means "enemies of the people"," Muratov said, dedicating his prize to all investigative journalists, and to colleagues at Novaya Gazeta killed because of their work. Nobel Peace Prize winner in 2020 and World Food Programme Executive Director David Beasley poses for a photo with Norway"s Queen Sonja and King Harald at the Royal Palace in Oslo, Norway, December 10, 2021. Lise Aserud/NTB/via REUTERS Nobel Peace Prize winner Maria Ressa takes a photo while co-prize winner Dmitry Muratov gestures during Save the Children"s annual Peace Prize party at the Nobel Peace Center in Oslo, Norway, December 10, 2021. Terje Bendiksby/NTB/via REUTERS Nobel Peace Prize winner Maria Ressa takes a selfie with co-prize winner Dmitry Muratov during the award ceremony of the Nobel Peace Prize at the Oslo City Hall in Oslo, Norway, December 10, 2021. Heiko Junge/NTB/via REUTERS 1/5 Nobel Peace Prize winner Maria Ressa takes a photo while co-prize winner Dmitry Muratov gestures during Save the Children"s annual Peace Prize party at the Nobel Peace Center in Oslo, Norway, December 10, 2021. Terje Bendiksby/NTB/via REUTERS Muratov"s co-laureate Ressa reiterated her call for reform of social media platforms. read more "Our greatest need today is to transform that hate and violence, the toxic sludge that"s coursing through our information ecosystem, prioritised by American internet companies that make more money by spreading that hate and triggering the worst in us," she said. "For the US, reform or revoke section 230, the law that treats social media platforms like utilities." Ressa and Muratov are the first journalists to receive the Nobel prize since Germany"s Carl von Ossietzky won the 1935 award for revealing the Nazis" secret rearmament programme. Ressa noted in her speech that Von Ossietzky was never able to collect his award as he was held in a concentration camp and died in custody. "By giving this to journalists today, the Nobel committee is signalling a similar historical moment, another existential point for democracy," she said. For a graphic listing all Nobel laureates, click on https://graphics.reuters.com/NOBEL-PRIZE/010050ZC27H/index.html