Originally Posted by
ErasmusEBS
There are also a number of lights in the sea in order to protect against intrusions from North Korea. I live in Korea myself and the whole seafront is fortified with guard towers many kilometres south of the border on both sides of Korea.
What made me think these lights were structures was the fact that there seems to be a ridigidy of placement; i.e. they are somewhat linear (or a pattern of some sort). Look out at the leading edge, there is almost a perfect line.
FWIW, the aircraft made a southerly turn after departure, then turned east directly towards Tokyo (and crossed over Tokyo)