Update:

"#Ukraine signed the #MineBanTreaty on February 24, 1999 and ratified the treaty on December 27, 2005. Ukraine is also party to #CCWAmendedProtocolII but their obligations on #AntipersonnelMines are superseded by the stricter prohibitions contained in the Mine Ban Treaty."

https://www.hrw.org/news/2023/06/13/landmine-use-ukraine

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Landmine Use in Ukraine

This background briefing surveys the types of landmines used in Ukraine since the full-scale Russian invasion began on February 24, 2022. Antipersonnel mines explode by the presence, proximity, or contact of a person, and can kill and injure people long after armed conflicts end.

Human Rights Watch