WASHINGTON (AP) - A U.S. research institute says new satellite imagery shows North Korea is conducting major new construction to expand facilities at a launch site from where it fired a rocket into orbit last December.
The work at the west coast site of Sohae, near the northern border with China, includes what could be a new launch pad for testing mobile ballistic missiles.
The U.S.-Korea Institute at Johns Hopkins School of Advanced International Studies stressed that's a preliminary analysis, based on scrutiny of commercial satellite imagery, the latest taken last Sunday.
The analysis was provided to The Associated Press ahead of publication Friday by the institute's website, 38 North.
The construction includes upgrading of roads and other facilities. The institute says rocket launches are unlikely for the next six months.
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