Survivors of Morocco’s deadliest earthquake in more than six decades are struggling to find food, water and shelter as the search for the missing continued in remote villages and the death toll of more than 2100 seemed likely to rise further.

Many people were preparing to spend a third night in the open after the 6.8 magnitude quake hit late on Friday (local time).

Relief workers face the challenge of reaching the worst-affected villages in the High Atlas, a rugged mountain range where settlements are often remote and where many houses crumbled.

The death toll climbed to 2122, with 2421 people injured.

The damage done to Morocco’s cultural heritage became more evident as local media reported the collapse of a historically important 12th-century mosque. The quake also damaged parts of Marrakech old city, a UNESCO World Heritage site.

In Moulay Brahim, a village 40 kilometres south of Marrakech, residents described how they dug the dead from the rubble using their bare hands.

On a hillside overlooking the village, residents buried a 45-year-old woman who had died along with her 18-year-old son, a woman sobbing loudly as the body was lowered into the grave.

As he retrieved possessions from his damaged home, Hussein Adnaie said he believed people were still buried in the rubble nearby.

“They didn’t get the rescue they needed so they died. I rescued my children and I’m trying to get covers for them and anything to wear from the house,” he said.

Later, sacks of food were unloaded from a truck that local official Mouhamad al-Hayyan said had been organised by the government and civil society organisations.

With many homes built of mud bricks and timber or cement and breeze blocks, structures crumbled easily. It was Morocco’s deadliest quake since 1960 when a tremor was estimated to have killed at least 12,000 people.

In the badly hit village of Amizmiz, residents watched as rescuers used a mechanical digger on a collapsed house.

“They are looking for a man and his son. One of them might still be alive,” said Hassan Halouch, a retired builder.

The team eventually recovered only bodies.

The army, mobilised to help the rescue effort, set up a camp with tents for the homeless.

The government said on Saturday it was taking urgent measures to address the disaster including reinforcing search and rescue teams, providing drinking water and distributing food, tents and blankets.

France and Turkey have offered assistance and are awaiting formal requests from Morocco.

Meanwhile teams from Spain, the US and Qatar have been deployed.

“The next two to three days will be critical for finding people trapped under the rubble,” Caroline Holt, global director of operations for the International Federation of Red Cross and Red Crescent Societies (IFRC), told Reuters.

She said the international aid system has been waiting for an invitation from Morocco to assist, adding this was not necessarily unusual as the government assesses needs.

A spokesperson for Morocco’s government did not immediately respond to Reuters phone calls seeking comment.

The World Health Organisation said more than 300,000 people have been affected by the disaster.

US President Joe Biden expressed his “sadness about the loss of life and devastation” caused by the quake.

Pope Francis offered prayers and solidarity for the victims.

Morocco has declared three days of mourning and King Mohammed VI called for prayers for the dead to be held at mosques across the country.

The quake’s epicentre was 72 kilometres south-west of Marrakech. The city is beloved of Moroccans and foreign tourists for its mediaeval mosques, palaces and seminaries richly adorned with vivid mosaic tiling amid a labyrinth of rose-hued alleyways.

– AAP