TOKYO — Prime Minister Shinzo Abe plans to leave Japan on Thursday to attend the Group of 20 major economies summit in Argentina and visit two other South American countries, the government said Tuesday.

On the sidelines of the G-20 summit in Buenos Aires, Abe is expected to hold separate bilateral talks with U.S. President Donald Trump and Russian President Vladimir Putin, officials said.

He will then visit Uruguay and Paraguay, making him the first sitting Japanese prime minister to travel to those countries.

He will return to Japan next Tuesday, giving up a plan of continuing his trip to Britain and the Netherlands apparently to focus on parliamentary deliberations around the immigration control law that are expected to heat up toward the end of the ongoing Diet session through Dec. 10.

The focus of the two-day G-20 summit will be whether member countries can reaffirm the importance of free trade amid the rise of protectionism.