Melbourne: Australian Prime Minister Julia Gillard will meet global leaders during the Nuclear Security Summit beginning on Monday in South Korea.

Gillard reached Seoul last night to attend the two-day summit which would not specifically deal with the threat posed by North Korea and Iran, but the recent increase in tensions on the Korean peninsula.

The leaders are expected to discuss ways to stamp out the threat of nuclear terrorism, prevent trafficking in nuclear material, and better protect nuclear facilities.

According to ABC report, global leaders would also discuss ways to stop nuclear material being used by terrorist groups.

The Summit is being held against the backdrop of North Korea's latest threat to use a long range rocket to launch a satellite.

Seoul and Washington said the launch would be a disguised test of a ballistic missile that violates Pyongyang's latest international commitments.

This is looking at the security of existing material and much of it used for civil use, rather than disarmament, the report said, adding so North Korea, Iran, aren't even on the agenda.

But obviously the North's latest threats to use a rocket to launch a satellite were very much casting a shadow over all the events here and they would definitely be talked about in those sideline discussions.

Australian government has said the country was leading the way in securing nuclear material and as one of the world's largest exporters of uranium, takes the issue very seriously.

Before attending the official opening of the Summit, Gillard would be visiting a local school and make a speech on Australia's economic and trade relationship with South Korea.

Gillard is likely to hold talks with UN secretary general Ban Ki-moon, British Deputy Prime Minister Nick Clegg and Helle Thorning-Schmidt, the new Danish Prime Minister on the sidelines of the Summit.