THE HAGUE - Malaysia wants "certain nuclear-powered countries" to be included in the Nuclear Security Summit (NSS).
Deputy Prime Minister Tan Sri Muhyiddin Yassin said it was pertinent to secure the co-operation of all countries in addressing nuclear issues.
It is understood that North Korea and Iran are among the nuclear states that are not members of NSS.
"My delegation feels that the way forward is to invite more countries to participate in the NSS process.
"In this way, we can share with them the lessons we have learnt and encourage them to adopt the best practices that we have established," Muhyiddin said during a plenary on the future of the nuclear security summit process at the 3rd biennial NSS here on Tuesday.
The participation of as many countries as possible was needed to ensure the success of initiatives such as preventing nuclear materials from falling into the hands of terrorists, he said.
Muhyiddin said there was a need to look into the "appropriate role" for the International Atomic Energy Agency (IAEA) to play in the future NSS processes.
"With its vast experience and a large pool of technical expertise, the IAEA is the appropriate international body to continue our work," he said adding that a decision on the matter should be made at the next summit.
It is learnt that the next summit scheduled in Washington would probably be the last.
The first summit was held in Washington in 2010, followed by Seoul in 2012 and The Hague this year.
US president Barack Obama mooted the idea of a biennial summit on nuclear security to prevent potential threats of nuclear terrorism.
Muhyiddin said the NSS had achieved much in the last four years.
"One of the main achievements is our clear recognition of the benefits of working in unison, rather than acting in isolation, as we shape the future of the nuclear security in the world," he said.
He said member states had shared their expertise and established a mechanism of co-operation to help prevent nuclear materials from falling into the hands of international terrorists.
"Most importantly we have entered into various commitments to enhance nuclear security, not only for ourselves but also for the rest of the world," he said.
Muhyiddin also stressed Malaysia's call for the elimination of nuclear weapons.
"We should not stop at securing all vulnerable nuclear materials. We must eliminate them," he said.
Co-operation from all the countries including those who were not members of the NSS should be sought to help prevent threats of nuclear terrorism.