The UN nuclear watchdog said it did not find any indication that North Korea had stopped its nuclear activities. “The continuation and further development of the DPRK’s nuclear program and related statements by the DPRK are a cause for grave concern,” the International Atomic Energy Agency (IAEA) said in a report published late on Monday. “As the agency remains unable to carry out verification activities in the DPRK, its knowledge of the DPRK’s nuclear program is limited and, as further nuclear activities take place in the country, this knowledge is declining,” the IAEA said. The report is to be submitted to the IAEA’s board meeting next month, Reuters said. US President Donald Trump said on Monday he believed Pyongyang had taken specific steps toward denuclearization.