https://www.bbc.com/news/world-europe-68323366"Ukraine's military says it has withdrawn its troops from Avdiivka - the key eastern town for months besieged by Russian forces.
Ukraine's Commander-in-Chief Oleksandr Syrskyi said he acted "to avoid encirclement and preserve the lives and health of service personnel".
He added that the troops were moved to "more favourable lines".
