Russian President Vladimir Putin said he had a brief but good conversation with US leader Donald Trump at World War I centenary events in Paris, Russian media reported.

Sri Lanka's main parties on Monday challenged in the highest court the president's sacking of parliament, a move which has escalated a political crisis and deepened international alarm.

A US navy fighter jet crashed into the sea off Japan's southern island of Okinawa on Monday and its two crew members were rescued alive, Japan's defence ministry said.

Empires would fall, regions reconfigure, new countries form: the end of World War I overhauled the global balance of power and redrew the maps of Europe and the Middle East.

World leaders gathered in the driving rain in Paris on Sunday to mark 100 years since the end of World War I, with host Emmanuel Macron warning against nationalism at a time of growing strain between Europe and Donald Trump's America.

Around 70 leaders including US President Trump and his Russian counterpart Vladimir Putin marked the centenary of the 1918 Armistice in the French capital at 11am local time (1000 GMT).

Florida authorities on Saturday ordered a statewide recount in the contentious races for U.S. Senate and governor, amid tit-for-tat accusations of fraud from the candidates -- plunging the state once again into election uncertainty.

Four soldiers were killed and about 20 injured in an explosion at an army munitions depot in southeast Turkey, President Recep Tayyip Erdogan said Saturday.

With words of gratitude, simple, solemn silence or a tweet, leaders lauded the courage of millions of soldiers who were killed during World War I's four years of unprecedented slaughter before converging on Paris for ceremonies to mark the centennial of the Armistice.

Canadian Prime Minister Justin Trudeau went to Vimy Ridge at dawn, the battlefield in northern France where Canada found its sense of self a century ago when it defeated German opposition against the odds.

The North and South Korean militaries completed withdrawing troops and firearms from 22 front-line guard posts on Saturday as they continue to implement a wide-ranging agreement reached in September to reduce tensions across the world's most fortified border, a South Korean Defense Ministry official said.

South Korea says the military agreement is an important trust-building step that would help stabilize peace and advance reconciliation between the rivals. But critics say the South risks conceding some of its conventional military strength before North Korea takes any meaningful steps on denuclearization — an anxiety that's growing as the larger nuclear negotiations between Washington and Pyongyang seemingly drift into a stalemate.

Indonesia on Saturday called off the search for passengers of a Lion Air plane, almost two weeks after the jetliner plunged into the Java Sea killing 189 people on board.