Ukraine claims its forces are locked in "fierce" fighting with Russian troops for control of the town of Vuhledar in Donetsk. The Ukrainian military claims to have killed at least 109 Russian soldiers in Vuhledar on January 26. Ukraine’s Air Force alleges Russia used Kinzhal hypersonic missiles to hit infrastructure sites in Kyiv and Zaporizhzhia on January 26.Meanwhile, US defence company Lockheed Martin has said it is ready to increase F-16 production as some allies seek to send fighter jets to Ukraine. Russia’s communications regulator Roscomnadzor says it has blocked the websites of the CIA and FBI.