The Daily Mail leads with a story on the attack at a Christmas market in the German city of Magdeburg. Graphic footage on social media shows the car driving at speed through a crowd. A suspect was arrested soon after. The Guardian headlines on Rachel Reeves defending her approach as chancellor. It quotes her saying she "won't gaslight voters over the economy", while accusing Reform UK of "not having a clue", amid polls showing the party is growing in popularity.The Mirror leads with Health Secretary Wes Streeting vowing to bring back family doctors in England as part of a "£889m extra boost to GP budgets".The Times reports that half a million people in the UK are now taking weight-loss injections purchased online because of to a slow rollout on the NHS.The Financial Times leads with reports that Donald Trump's team has told European officials that he will demand that Nato member states raise defence spending to 5% of GDP. It also has a story on how toy retailers are increasingly focusing on teenagers and young adults as birth rates drop. The Daily Star has the headline "Well this is awkward" after it was announced Lord Peter Mandelson is to be the next UK ambassador to the US. A top campaign adviser to Donald Trump called Mandelson - who has criticised in the US president-elect in the past - "an absolute moron".The i reports the UK's 10 worst-performing rail firms have been cancelling about 800 trains a day in the past year. It comes as widespread travel disruption is expected across the Christmas period. The Daily Telegraph carries a story about children born under fertility treatment in the 1970s under the headline: "The IVF pioneer, secret sperm donors and families torn apart". The Daily Express says the King is feeling "positive" as he gears up for full duties next year after his treatment for cancer. And the Sun reports on how "fed up" Prince Andrew is refusing to walk the late Queen's corgi dogs. It comes in the week it was revealed he would not be attending the traditional Royal Family Christmas events following reports about past business dealings between him and a suspected Chinese spy. Sign up for our morning newsletter and get BBC News in your inbox.Related Internet LinksDaily ExpressDaily MailDaily MirrorDaily StarDaily TelegraphFinancial TimesGuardianIndependentMetroSunThe iTimes