Ukraine war: Zelensky declares Putin’s Orthodox Christmas ‘ceasefire’ a failure, while PM says Russia has created 250,000 square km minefield

• Putin had unilaterally ordered a 36-hour ceasefire on Thursday, timed for the Christmas holiday that many Orthodox Christians celebrate on January 7
• But Zelensky claimed Russian shells hit Bakhmut and elsewhere, while Ukraine’s PM Shmyhal says nation now has world’s biggest minefield – roughly size of UK