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

Several leading armed groups fighting the military have suspended hostilities during the quake recovery, but junta chief Min Aung Hlaing vowed to continue "defensive activities" against "terrorists".

UN agencies, rights groups and foreign governments have urged all sides in Myanmar's civil war to stop fighting and focus on helping those affected by the quake, the biggest to hit the country in decades.

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, the fire service and junta said.

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 shows.

Call for peace

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 true scale of the disaster has yet to become clear, and the toll is likely to rise.

Relief groups say that that response has been hindered by continued fighting between the junta and the complex patchwork of armed groups opposed to its rule, which began in a 2021 coup.

Julie Bishop, the UN special envoy on Myanmar, called on all sides to "focus their efforts on the protection of civilians, including aid workers, and the delivery of life-saving assistance".

Read also: UN urges aid to Myanmar quake survivors before monsoons hit

Even before Friday's earthquake, 3.5 million people were displaced by the fighting, many of them at risk of hunger, according to the United Nations.

Late Tuesday, an alliance of three of Myanmar's most powerful ethnic minority armed groups announced a one-month pause in hostilities to support humanitarian efforts in response to the quake.

The announcement by the Three Brotherhood Alliance followed a separate partial ceasefire called by the People's Defense Force -- civilian groups that took up arms after the coup to fight junta rule.

But there have been multiple reports of junta air strikes against rebel groups since the quake.

"We are aware that some ethnic armed groups are currently not engaged in combat, but are organizing and training to carry out attacks," said Min Aung Hlaing, mentioning sabotage against the electricity supply.

"Since such activities constitute attacks, the Tatmadaw [armed forces] will continue to carry out necessary defensive activities," he said in a statement late Tuesday.

Thailand toll rises

Australia's government decried the reported air strikes saying they "exacerbated the suffering of the people".

"We condemn these acts and call on the military regime to immediately cease military operations and allow full humanitarian access to affected areas," Foreign Minister Penny Wong said.

Read also: Defense Ministry sends 12 tonnes of aid for Myanmar earthquake victims

Amnesty International said "inhumane" military attacks were significantly complicating earthquake relief efforts in Myanmar.

"You cannot ask for aid with one hand and bomb with the other," said the group's Myanmar researcher Joe Freeman.

Hundreds of kilometers away, in the Thai capital Bangkok, workers continued to scour a pile of rubble that formed when Friday's tremors collapsed a 30-story skyscraper.

The structure had been under construction at the time, 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.