Top nuclear envoys from Japan, South Korea and the United States have agreed to push for "meaningful and new sanctions" in response to North Korea's latest globally condemned nuclear test, according to U.S. envoy Sung Kim.

Kim, the United States' special representative for North Korea policy, made the remarks in Seoul on Wednesday after talks with Hwang Joon-kook, South Korea's special envoy for Korean Peninsula peace and security affairs, and Kimihiro Ishikane, director-general of the Japanese Foreign Ministry's Asian and Oceanian Affairs Bureau.

"The three countries agreed there needs to be meaningful and new sanctions," Kim said.