evidence: Myanmar, Thailand: Border closure at Three Pagodas Pass in Payathonzu as of June 20 Separatist groups announce border closure at Three Pagodas Pass in Payathonzu, Myanmar, as of June 20. Increased security likely. Separatist groups in Myanmar's Karen State are maintaining the closure of Payathonzu's Three Pagodas Pass border crossing with Thailand as of June 20, with a decision on when the crossing will reopen on June 22. This is due to the crossing allegedly not following existing trading laws; separatists say they seeking to restrict the illegal movement of goods. Thai officials have also closed their side of the border.