From Our Own Correspondent

Fighting has continued in Nagorno-Karabakh, the territory inhabited and run by ethnic Armenians, but officially still part of Azerbaijan. The armed clashes have included Azerbaijani shelling of residential areas in the main town Stepanakert, from where Jonah Fisher reports that residents have had to take shelter or flee to neighbouring Armenia. US President Donald Trump tested positive for Covid-19 and was taken to a top military hospital on Friday. It was a fast-moving and seismic day not only for the staff at the White House - where suddenly everyone was wearing a mask, as Tara McKelvey observed - but also for the nation at large. The Vatican, the headquarters of the Catholic Church, has been the subject of rumours about financial secrets for a long time, something Pope Francis has hoped to change with greater transparency. And so a senior cardinal has suddenly been forced to resign over alleged financial wrongdoings. And the Church also published a "consolidated balance sheet"; a first says veteran Vatican