While observers counted the number of missiles rolling through Kim Il Sung Square at North Korea’s military parade last month, another group of the country’s largest weapons were sneaking off down a side road just before the square. According to NK Pro analysis of a newly-released photo, this apparently included a fifth Hwasong-15 intercontinental ballistic missile (ICBM) that was not seen in initial state media coverage of the parade.

The revelation helps weapons analysts account for Pyongyang’s inventory of the powerful nuclear-capable missiles and launch vehicles, one expert said, as questions remain over the