this is bbc news, the headlines... russia's self—declared ceasefire in ukraine has come to an end. fighting continued in various locations throughout the 36—hour period. president volodymyr zelensky said moscow's offer of a christmas truce was deceitful. prime minister rishi sunak and the health secretary have been meeting leaders of nhs organisations and medical experts in downing street to try to tackle the ongoing challenges facing the health service in england. the new republican speaker of the us house of representatives, finally elected after 15 rounds of voting, says former president trump helped him get there. kevin mccarthy's repeated attempts to secure the job almost saw fellow republicans come to blows.