Junta leader Min Aung Hlaing attended a weekend meeting on the crisis with the leaders of the 10-country ASEAN -- his first overseas trip since he seized power.
Since the February 1 coup, Myanmar has been in turmoil -- with hundreds of thousands of protesters taking to the streets to demand a return to democracy.
Min Min Soe said Suu Kyi appeared in good health but it is not clear if she has any idea of the turmoil that has unfolded in Myanmar over the past two months.
With more than 600 people killed by security forces trying to quell the movement, the international community has increasingly raised the alarm on the crisis.
It has also directed local telecom service providers to block access to social media sites, which protesters have skirted by using virtual private networks and foreign SIM cards.
Russia, which has shown support for Myanmar's ruling military council, on Tuesday said the West risked triggering civil war in the country by imposing sanctions on the junta.
On Tuesday, in the commercial capital Yangon, people smeared red paint and handprints on bus stops and pavements in protest at the military's violence.
Myanmar has been gripped by turmoil since a February 1 coup ousted civilian leader Aung San Suu Kyi and derailed the country's tentative transition to democracy.