North Korea accused South Korea of a “dangerous provocation” during a recent incident at the border of the two countries, adding to tensions as Pyongyang chafes at the annual joint US-South Korean military drills that are underway.

North Korea accuses South Korea of a “serious provocation” after South Korean troops fired warning shots Tuesday at North Korean soldiers setting up barriers along their tense border.

The two missiles tested on Saturday were designed to target aerial threats, including attack drones and cruise missiles, the Korea Central News Agency reported on Sunday.