(KPL/AFP) Rescuers on Wednesday pulled a man alive from the rubble five days after Myanmar's devastating earthquake, as calls grew for the Myanmar government to allow more aid in.

The shallow 7.7-magnitude earthquake on Friday flattened buildings across Myanmar, killing more than 2,700 people and making thousands more homeless.

Hopes of finding more survivors are fading, but there was a moment of joy on Wednesday as a man was pulled alive from the ruins of a hotel in the capital Naypyidaw.

The 26-year-old hotel worker was extracted by a joint Myanmar-Turkish team shortly after midnight.

Dazed and dusty but conscious, the man was pulled through a hole in the rubble and put on a stretcher, video posted on Facebook by the Myanmar Fire Services Department showed.

Min Aung Hlaing said Tuesday that the death toll had risen to 2,719, with more than 4,500 injured and 441 still missing.

But with patchy communication and infrastructure delaying efforts to gather information and deliver aid, the full scale of the disaster has yet to become clear, and the toll is likely to rise.

The World Health Organization (WHO) reported severe damage in the city of Sagaing, citing local rescuers saying one in three houses there have collapsed.

Healthcare facilities, damaged by the quake and with limited capacity, are "overwhelmed by a large number of patients", while supplies of food, water and medicine are running low, WHO said in an update.

- Thailand toll rises -

Hundreds of kilometres away, in the Thai capital Bangkok, workers continued to scour through the rubble of a collapsed 30-storey skyscraper.

The structure had been under construction when the earthquake hit and its crash buried dozens of builders -- few of whom have come out alive.

The death toll at the site has risen to 22, with more than 70 still believed trapped in the rubble.

KPL