By The Nation
The letter was submitted via Thai Ambassador to Myanmar Jukr Boon-Long at the Thai embassy in Yangon, the Shan News Agency reported.
The two Myanmar men were convicted in the murder of two British backpackers David Miller and Hannah Witheridge on Koh Tao, Surat Thani province, in 2014.
In early March, the Appeal Court upheld death sentences handed down to the two Myanmar migrant workers.
After the verdict, dozens of Myanmar citizens and monks gathered in front of the Thai Embassy in Yangon to protest the Appeals Court's order.