North Korea has resumed work at its underground nuclear testing site, defense analysts said, as the country vowed to keep expanding its nuclear arsenal despite the latest United Nations sanctions. Nytimes.com The Nuclear Regulation Authority (NRA) in Japan held off on granting the Tokyo Electric Power Company clearance to restart the Kashiwazaki-Kariwa Nuclear Power Plant's two units – No. 6 and 7 – this week, but noted that the company (Tepco) was capable of running nuclear reactors. Nuclearstreet.com Cambodia has signed a memorandum of understanding with China National Nuclear Corporation (CNNC) on cooperation in the peaceful use of nuclear energy. The agreement calls for cooperation on human resources development. World-nuclear-news.org Finnish utility Teollisuuden Voima Oyj (TVO) announced today it has filed an appeal against the European Commission's approval for the French government to inject €4.5 billion ($5.4 billion) into Areva. TVO claims the plan does not provide sufficient guarantees that the Olkiluoto 3 EPR project will be completed. World-nuclear-news.org