Six O'Clock News

Thousands of people have taken to the streets in several Ukrainian cities, after President Zelenksy sacked his popular young defence minister, Mykhailo Fedorov. Also: An official report has concluded that MI5 lied while giving evidence to three courts about a neo-Nazi informer, whose abuse of his partner was uncovered by the BBC. And a lost trove of David Bowie songs is unearthed.