The North Korean military issued a statement on Saturday threatening to attack activists should they fly leaflets into the North as planned.

“All the firepower strike means of the frontline units of the KPA will launch without prior warning indiscriminate operations to blow up balloons carrying those leaflets,” said the “open notice” of the Korean People’s Army (KPA), carried by the state-run Korean Central News Agency (KCNA).

Earlier this month, the defector activist group Fighters for a Free North Korea announced that they would send leaflets and DVDs of the film The Interviewinto the North around March