The UN has told Myanmar’s military junta that “the right of peaceful assembly must fully be respected”.
In a phone call, UN Special Envoy Christine Schraner Burgener warned that “any form of heavy-handed response is likely to have severe consequences”.
Access to the internet in Myanmar was restored on Tuesday morning after it was cut off for a second night.
The junta has been regularly blocking the web to try to stifle dissent since the 1 February coup.
Schraner Burgerer’s warning came during Monday’s phone call with the junta’s head Soe Win, said a UN spokesperson.
The special envoy stressed that the internet blackouts “undermine core democratic principles”.
Protesters went out again on Tuesday. They have been encouraging civil servants to join the civil disobedience movement in the main city of Yangon.
The military authorities earlier announced penalties for those opposing the coup leaders.
The junta said it overthrew elected leaders, including long time democracy campaigner, Aung San Suu Kyi, due to alleged voter fraud. It has not provided any evidence to support these claims.