North Korean leader Kim Jong Un declared the country's global standing was growing stronger every day at an event on Thursday attended by visiting foreign heads of state marking the founding of the ruling Workers' Party, state media reported on Friday.

Kim honoured the legacy of the party that he said had made "not a single mistake or error" in its 80-year history, leading the country on a path of ascent riding on the wisdom and strength of the people, KCNA state news agency said.

"Today, we stand before the world as a mighty people with no obstacles we cannot overcome and no great achievement we cannot accomplish," he said at a speech at May Day stadium in Pyongyang attended by high-level foreign delegations, KCNA reported.

The events come after Kim's visit to Beijing last month for the 80th anniversary of China's victory in World War II, standing with President Xi Jinping and Russian President Vladimir Putin at a massive military parade in his first public appearance on the multilateral diplomatic stage.

KCNA did not name the guests attending Thursday's events.

Premier Li Qiang, Vietnamese leader To Lam and Russian Security Council Deputy Chairman Dmitry Medvedev had arrived in Pyongyang to attend anniversary celebrations, state media had reported.

Mass games and art performances were held at the stadium with Kim accompanied by guests whom the large crowd gathered greeted with cheers "that shook the capital's night sky," KCNA said.

State media made no mention of a large-scale military parade the country was expected to stage to mark the anniversary.

Kim held talks with Premier Li, where they said the visit marked a "new chapter" in advancing the two countries' ties under their supreme leaders and pledged to expand strategic dialogue and high-level exchanges, KCNA said.

A report by the Xinhua News Agency said Premier Li had said Beijing stands ready to strengthen high-level exchanges and strategic communication with North Korea.

The premier said China is ready to work with Pyongyang to further carry forward their traditional friendship, deepen practical cooperation, and closely coordinate and cooperate in international and regional affairs.

Meanwhile, Kim separately received Vietnam's To Lam with an honour-guard welcome and held talks on advancing cooperation to meet global challenges, KCNA said.

Medvedev held talks with senior North Korean officials and attended a reception held in his honour, it added. (Reuters/ Xinhua)