Top-ranking Ukrainian commanders have not yet surrendered from the labyrinth of bunkers and tunnels below the Azovstal steel works in Mariupol, the leader of the Russian-backed separatist region of Donetsk said on Wednesday.
As the most devastating siege in Russia's invasion moves towards a finale, nearly 1,000 Ukrainian fighters who barricaded themselves into the tunnels have so far given themselves up to Russian and pro-Russian forces since Monday.
