Russia's President Vladimir Putin has launched a full-scale invasion of Ukraine, with reports of missile strikes on major cities and military convoys crossing the border.
In a televised address, Putin warned that Moscow's response would be "instant" if anyone tried to take on Russia. Ukraine's foreign minister has accused Russia of starting a full-scale war and called on the UK to do "everything possible" to stop it.
United States President Joe Biden said the world will hold Russia accountable and UK Prime Minister Boris Johnson pledged a decisive response from the UK and its allies.
