Myanmar's ruling junta declared a week of national mourning on Monday for the country's devastating earthquake, which has killed more than 1,700 people, as hopes faded of finding more survivors in the rubble of ruined buildings.

National flags will fly at half-mast until April 6 "in sympathy for the loss of life and damages" from Friday's massive 7.7 magnitude quake, the junta said in a statement.

The announcement came as the tempo and urgency of rescue efforts was winding down in the central Myanmar city of more than 1.7 million people, one of the worst affected by Friday’s devastating 7.7-magnitude quake.