Indonesia’s foreign minister plans to fly to Myanmar on Thursday in the first known visit by a foreign envoy since the Feb. 1 military coup, a leaked government document said, as Western pressure mounts over a crackdown on protesters, according to a Reuters report.

Retno Marsudi will arrive in the capital Naypyitaw in the morning and depart several hours later, according to the letter from the Ministry of Transport dated Feb. 23 seen by Reuters, which an official said was authentic.

Retno has been rallying support in Southeast Asia for a special meeting on Myanmar and sources said Jakarta proposed the region sends monitors to ensure the generals hold “fair and inclusive elections”.