Trump impeachment: US envoy condemns 'irregular' pressure on Ukraine
President Trump insists there has been no quid pro quo in Ukraine policy
Ambassador Bill Taylor testified before an impeachment inquiry that he was told Mr Trump wanted Ukraine to probe ex-Vice-President Joe Biden's dealings.
British Prime Minister Boris Johnson has hit the pause button on his Brexit legislation after MPs rejected his plan to get it through the Commons in three days.
Russia hosts its first ever Africa summit as the Kremlin seeks to expand its influence and find new allies.