Boris Johnson gives final speech

We're live outside the British parliament on a momentous day in this country's politics. In a few hours, Boris Johnson will resign as prime minister. We'll bring you his final speech as PM, as Liz Truss will be formally appointed by the Queen as the UK's new prime minister.

We'll look at the issues facing the UK's new leader from the war in Ukraine, to a struggling economy and a cost of living crisis.

We'll also have the latest from Canada, as police extend their manhunt for the suspects in Sunday's knife attacks to cover three provinces.