Pyongyang, November 26 (KCNA) -- The leakage of radioactive substances is going on in Japan, arousing serious concern.

The radioactive volume of 1,600 mSv per hour was measured around the examination gate of the containment vessel on the first floor of Reactor No. 3 of the Fukushima Nuclear Power Plant, Tokyo Electric Power Co. quoted a survey as saying on Nov. 20.