It was certain that the IL-28 was in North Korea, but I wasn’t so sure about the H-5 for a few reasons.
There is a cannon on the right side from the pilot’s perspective. (On the H-5, the right cannon was removed, except for the early models.)
According to Chinese source(魏钢, 陈应明, 张维. (2011). 中国飞机全书 (Vol. 3). 航空工业出版社.), the first export of the H-5 was to Albania in 1971. (Given the timing, it likely wouldn’t have been an early model of the H-5.)
I should look into this with more interest!