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.
US-Iran peace talks end without agreement, delegations leave Pakistan
The US and Iran failed to reach an agreement to end their war despite marathon talks that concluded on Sunday in the Pakistani capital Islamabad, jeopardising a fragile ceasefire.
At least 30 dead in stampede at Haiti’s historic Laferriere Citadel
At least 30 people were killed on Saturday in a stampede at the Laferriere Citadel in the northern countryside of Haiti, authorities said, warning that the death toll could rise.
Cyclone lashes New Zealand's North Island, hundreds evacuated
A cyclone battered New Zealand's North Island on Sunday, cutting power to thousands of residents and forcing hundreds to evacuate, as officials warned conditions would worsen through the day.
US-Iran talks pause for now, disagreements remain
Negotiations between the United States and Iran appeared to have concluded for now, Iran's government has announced early on Sunday, after a series of talks in Pakistan to end the six-week war between Washington and Tehran.
Costa Rica receives first group of deported migrants under agreement with US
Costa Rica on Saturday has received the first group of migrants from other countries deported from the United States under an agreement signed in March between the two countries, local authorities said.
