SEOUL, Jan. 6 (Yonhap) -- North Korea recently completed a large dock capable of building 10,000-ton-class submarines in a shipyard in Sinpo, South Hamkyong Province, a U.S. broadcaster, monitored in Seoul, reported Friday.
"In accordance with North Korean leader Kim Jong-un's instruction to build a 10,000-ton sub in 2014, the existing dock in Sinpo was expanded of late," Radio Free Asia (RFA) said, citing a North Korean source.
The shipbuilding dock is 180 meters long and 25 meters wide, the source said.
Experienced engineers and technicians working at a shipyard in Chongjin, North Hamkyong Province, along with their family members, also have moved to Sinpo to build submarines, according to the source.
Apart from that, two 3,000-ton-class subs are currently under construction at the shipyards in Sinpo and Chongjin, the source said.
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