North Korea says it’s medium-range ballistic missile is ready for mass production and deployment after another successful missile test this weekend.

The New York Times reports the missile uses solid rocket fuel, not liquid, which means it’ll be harder to detect. It can be fired quickly; the missile can be loaded with fuel before it’s moved to launching pad, as opposed to having to fuel it up at the launching pad.

Fox News reports North Korea says the missile is an “answer” to President Trump’s policies.

Reuters reports China urged all parties to practice restraint.