TOKYO - Japanese Prime Minister Shinzo Abe said on Saturday (June 2) that Japan wants to contribute to the success of the US-North Korea summit in Singapore, which President Donald Trump said would go ahead as planned.

Japan "is determined to make utmost efforts so that it will be a historic summit that will move forward the nuclear, missile and abduction issues," Abe was quoted as saying by Kyodo News during a speech in the western Japan prefecture of Shiga.

Abe has said the North's abduction of Japanese nationals in the 1970s and 1980s is one of the most important political agendas for his administration.

Abe will hold talks with Trump at the White House on June 7 before travelling to Canada for the Group of Seven summit on June 8 and 9, hoping to coordinate their policies ahead of the US president's meeting with North Korean leader Kim Jong Un.

On Friday, Trump said his plan to meet Kim on June 12 in Singapore had been revived after meeting with top North Korean aide Kim Yong Chol in the White House.

At a gathering organised by his Liberal Democratic Party's local chapter, Abe also stressed that Japan will not tolerate a nuclear-armed North Korea.

"We continue to raise pressure and don't allow loopholes" in international economic sanctions targeting the country, he was quoted as saying by Kyodo News.

Mr Abe, however, did not use the phrase "maximum pressure".

Following his meeting with Kim Yong Chol on Friday, Trump said he does not want to use that term because Washington and Pyongyang are now "getting along".