Voting is set to close later on Monday in the Conservative leadership contest.
Party members have until 5 pm UK time to vote for either Jeremy Hunt or Boris Johnson as their next Tory leader.
Johnson, who is the former mayor of London and the ex-Foreign Secretary, is widely considered to be the favourite in the race.
The UK's next prime minister will be announced on Tuesday, and he will take office a day later, succeeding Theresa May.
Mexico vows retaliation to Trump tariffs
Mexican President Claudia Sheinbaum on Saturday ordered retaliatory tariffs in response to the US decision to slap 25 per cent tariffs on all goods coming from Mexico, as a trade war broke out between the two neighbours.
Arab foreign ministers reject call for transfer of Palestinians
Arab foreign ministers rejected the transfer of Palestinians from their land under any circumstances, presenting a unified stance against US President Donald Trump's call for Egypt and Jordan to take in residents of the Gaza Strip.
Russian air attack kills four in Ukraine, Kyiv says
Russia launched a barrage of drones and missiles on Ukraine on Saturday, killing at least four civilians and damaging residential buildings and infrastructure across the country, Ukrainian officials said.
Three Israeli hostages released in latest Gaza exchange
Hamas handed over three Israeli hostages on Saturday, in the latest stage of a truce aimed at ending the 15-month war in Gaza.
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