U.S. President Donald Trump is set to meet Japanese Emperor Naruhito on Monday in the Imperial Palace in Tokyo, six years after their previous meeting during the first Trump presidency.

U.S. immigration authorities detained British commentator Sami Hamdi, revoked his visa and said he would be deported rather than allowed to complete his speaking tour in the United States, a Homeland Security official said on Sunday.

At least four people were killed by gunshots in opposition protests in Cameroon's commercial capital Douala on Sunday, according to the campaign of presidential candidate Issa Tchiroma, who is seeking to oust veteran leader Paul Biya.

The party of Argentina's President Javier Milei's has achieved a victory in Sunday's midterm election, local media reported, virtually tying with the Peronist opposition in the key Buenos Aires province.

Russian air defence systems were engaged overnight in repelling repeated attacks targeting Moscow that forced the closure of two of the city's four airports, Russia authorities said on Monday.

Five Pakistani soldiers and 25 militants have died in clashes near the border with Afghanistan, the military said on Sunday, as delegations from both countries met to try to defuse tensions after the deadliest fighting in years.

NATO member Lithuania closed Vilnius Airport and Belarus border crossings on Sunday after several objects, identified as likely helium balloons, entered its airspace, the National Crisis Management Centre said, the fourth such incident this week.

Kosovo's parliament failed to elect Albin Kurti as prime minister on Sunday, increasing the likelihood that a snap election will be called to break a political deadlock following an inconclusive parliamentary vote in February.