Tag in this undated photo released by north koreas korean central news agency kcnahandout via reuters
It looks like you're referring to a photo from North Korea's Korean Central News Agency (KCNA) via Reuters. The tag you're looking for is likely:
"[Undated Photo] Released by North Korea's Korean Central News Agency (KCNA) via Reuters"
This tag is commonly used to identify photos or images released by North Korea's official news agency, KCNA, and distributed by Reuters, a major international news agency. The tag indicates that the photo is undated, meaning the exact date it was taken is not specified.