A plenary session of the 47-nation U.S. summit on nuclear security has begun in Washington.
Discussions are taking place behind closed doors. The results of the talks will be announced during a news conference afterwards.
In his opening speech, U.S. President Barack Obama said the next nuclear security summit will take place in South Korea in 2012.
During the summit, world leaders are expected to make concrete commitments to ensure that their national stocks of separated plutonium and enriched uranium are not stolen, smuggled or sold to terrorists.
The summit comes after the signing of a new strategic arms reduction treaty by U.S. President Barack Obama and Russian President Medvedev in Prague last Thursday.
The two countries, which possess about 90% of global arsenals of nuclear weapons, have agreed to reduce the number of nuclear warheads to 1,550 on each side and the number of deployed and non-deployed delivery vehicles to 800 on each side.
WASHINGTON, April 13 (RIA Novosti)