World leaders gather in Japan ahead of G7

US President Barack Obama arrived in Japan today for a Group of Seven summit, kicking off a historic visit that will also take him to the atomic-bombed city of Hiroshima.
Obama was joining other leaders from the club of rich democracies for a gathering set to be dominated by the lacklustre state of the global economy.
Heads of state and government from Britain, France, Germany, Italy, Canada and host Japan were also making their way to Ise Shima, a mountainous and sparsely populated area 300 kilometres southwest of Tokyo, whose mainly elderly residents rely chiefly on tourism and cultured pearls.

Security was tight across the region, with thousands of extra police drafted in to patrol train stations and ferry terminals, and to direct traffic on the usually quiet roads during the two-day meeting.
Tokyo said it was taking no chances in the wake of terror attacks that struck Paris and Brussels in recent months.
Dustbins have been removed or sealed and coin-operated lockers blocked at train and subway stations in the capital and areas around the venue site.

Authorities said they will be keeping a close eye on so-called "soft targets" such as theatres and stadiums.
However, unlike in many other rich democracies, protests were unlikely to cause much of a security headache.

One left-wing demonstration organised for Wednesday morning and focused mostly on Japan's domestic politics attracted just a handful of largely elderly protesters.
Britain's David Cameron, whose country's referendum next month on continued membership of the European Union was likely to figure prominently on the summit agenda, arrived late afternoon at the main international airport near Nagoya.
Cameron was set for a one-on-one meeting later in the day with summit host, Japanese Prime Minister Shinzo Abe.
Abe was also due today to meet Obama, whose visit to Hiroshima on Friday threatens to overshadow the summit itself.
Obama will become the first sitting US leader to travel to the city, the site of the world's first nuclear attack, on August 6, 1945.

Obama has spent the last few days in Vietnam, where on Tuesday he urged the communist authorities to embrace human rights and abandon authoritarianism.
France's Francois Hollande and Germany's Angela Merkel were expected to arrive tomorrow morning. The meeting will also be joined by Italy's Matteo Renzi and Canada's Justin Trudeau.