(Reuters) – The Russian co-winner of last year’s Nobel Peace Prize, Dmitry Muratov, was attacked on a train with red paint on Thursday, he said, in an apparent protest at his newspaper’s coverage of Russia’s invasion of Ukraine. Muratov’s Novaya Gazeta investigative newspaper last week announced it was suspending its online and print activities until the end of what Russia calls its “special operation” in Ukraine after a second warning from the state communications regulator. Pictures posted by the newspaper on the Telegram messaging app showed Muratov with red paint on his head and clothes an…