North Korea's ongoing nuclear developments are of "grave concern," the International Atomic Energy Agency (IAEA) says in a report that gives no indications Pyongyang has curbed its atomic program.
North Korean leader Kim Jong-un had agreed to work towards a nuclear-weapons-free Korean peninsula when he met South Korean President Moon Jae in April and US President Donald Trump in June.
However, the IAEA report published this week in Vienna contains a detailed list of ongoing activities in various nuclear facilities, including the Yongbyon power plant that is believed to produce the plutonium for North Korea's nuclear test explosions.
Construction of a possible additional reprocessing plant that could extract plutonium from used reactor fuel has continued, according to the report.
In addition, the IAEA said it has been monitoring a site near Pyongyang whose characteristics and construction history "are not inconsistent with a centrifuge enrichment facility."
Enriched uranium can also be used in nuclear warheads.
"The continuation and further development of the DPRK's nuclear program and related statements by the DPRK are a cause for grave concern," IAEA chief Yukiya Amano wrote in the report, using the acronym for the country's official name - the Democratic People's Republic of Korea.
IAEA inspectors are not allowed into North Korea, but they have been monitoring the country via satellites and other available information.
