A North Korea Scud-B missile is displayed at the Korea War Memorial Museum on August 26, 2017 in Seoul, South Korea.

The top U.S. and South Korean military officers agreed to make a strong response to North Korea's latest ballistic missile launch on Tuesday, including possible unspecified military measures, South Korea's Yonhap news agency said.

The chairmen of both countries' Joint Chiefs of Staff agreed on a phone call "to take response measures at the earliest possible time that can demonstrate the alliance's strong will including military measures," Yonhap reported, quoting the South Korean military.