>> A seismic blast in North Korea with the hallmarks of a nuclear test. The US, Europe, and South Korea all reporting a strong tremor near a known nuclear site early on Friday. One report measuring the blast at 20 to 30 kilotons. Which would make it the country's largest ever atomic explosion.
The apparent test looks to have been timed to coincide with North Korea's Foundation Day. Supreme leader Kim Jong Un has lit a fire unto the North's weapons program. It's first three nuclear tests were strung out over a decade. But this appears to be the second one to be carried out this year.
That doesn't mean the country is battle ready exactly. Experts say in order for a North Korean nuke to reach the US for example, it would need to be small enough to fit on the head of a long-range ballistic missile launched from a submarine. Technology which is apparently still years away.
But experts warn the country is making big strides. A barrage of rocket launches this year shows North Korean missiles are flying longer and faster. Pyongyang is carrying out weapons tests despite strict international sanctions, which after Friday's blast could be squeezed even further.