SEOUL, South Korea (AP) — North Korea said Saturday it tested a “super-large” cruise missile warhead and a new anti-aircraft missile in a western coastal area as it expands military capabilities in the face of deepening tensions with the United States and South Korea.

North Korean state media said the country’s missile administration on Friday conducted a “power test” for the warhead designed for the Hwasal-1 Ra-3 strategic cruise missile and a test-launch of the Pyoljji-1-2 anti-aircraft missile. It said the tests attained an unspecified “certain goal.”

Photos released by the North’s official Korean Central News Agency showed at least two missiles being fired off launcher trucks at a runway.

North Korea conducted a similar set of tests Feb. 2, but at the time did not specify the names of the cruise missile or the anti-aircraft missile, indicating it was possibly seeing technological progress after testing the same system over weeks.