President Min Aung Hlaing dismissed ASEAN's peace plan, saying some member states have discriminated against Myanmar and it would respond on a case-by-case basis.
Suu Kyi has been jailed since being deposed by a 2021 military coup but spent years under house arrest at the historic property during a previous period of junta rule.
Suu Kyi, 78, and Win Myint, the 72-year-old former president of her ousted government, were among the elderly and infirm prisoners moved from out of prison because of the severe heat.