premises, but after today's conviction with possibly more charges to follow, aleksei navalny looks setn locked away for years to come. steve rosenberg, bbc news, russia. anchor: in reaction to the sentence extension of an outside navalny, the u.s. state department sai "for years the criminal has attempted to silence aleksei navalny and prevent his calls for transparency unaccountably from reaching the russian people. by conducting this latest trial in secret, russian authorities demonstrate again the basis of their case and the lack of due process afforded to those who dare to criticize the regime." a video has emerged showing a siege run driving into the side of a russian naval vessel in the black sea. the bbc has not verified this video, but the nighttime footage appears to show a drone driving into the side of a large ship and tting out on impact. the video was released by ukrainian security services claim this ship suffered a serious breach, but russia's defense ministry says it repelled an attack and did not admit to any damage. james waterhouse filed this report. correspondent: u