Photos released by 38 North, a blog run by the school's School of Advanced International Studies, showed the presence of a probable rocket stage, propellant tanks and burned vegetation around the launch stand at the Sohae launch facility, CNN reported Monday.
"These are not in and of themselves indicators that there is going to be a rocket test six months from now," said Joel Wit, a former North Korea specialist in the U.S. State Department who now works with 38 North.
The photos don't indicate whether it was a test for the Unha-3 rocket, which North Korea successfully launched in December, or one much larger than that.
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