Terrified Moroccans spent a second night in the streets after a powerful earthquake killed more than 2,000 people, as rescuers race against time to reach trapped victims in remote mountain villages near the epicentre hit hardest by the devastating tremor.

The 6.8-magnitude quake, which struck late on Friday was Morocco’s deadliest in six decades. It was also the strongest to hit the region around the ancient city of Marrakech in a century, according to the US Geological Survey.

So far 2,012 people have been listed killed and 1,404 others critically injured, according to Moroccan authorities, but the toll is expected to rise further as rescuers dig through the rubble of collapsed houses in remote areas of the High Atlas mountains.

In historic Marrakech, the largest city near the centre of the quake and a major tourist draw, many families spent Saturday night staying out in the open, as authorities warned residents to pay close attention to follow-up tremors.

People stayed away from the damaged buildings in the city’s tightly-packed medieval-era centre as well as the surrounding red earth walls, where parts have crumbled.

A Marrakech resident told CNN the walled old city, or Medina suffered extensive damage.

“There is a lot of damage that has happened to a lot of buildings. Some of them are mosques, some of them are houses, a lot of communities got hurt,” he said.

In the Oliveraie Park in central Marrakech, hundreds of people, including children and the elderly, slept on blankets and makeshift mattresses. Families huddled together, trying to get some rest after the shock and panic from the night before.

Some brought bags of clothes and food, preparing for a possible longer stay away from their homes.

Flags around the city are flying at half-mast to mark three days of national mourning announced by the monarchy.

In Marrakech’s airport, dozens of tourists slept on the floor in the main terminal, waiting to catch a flight out. Flights in and out of the tourism hub have been operating mostly as normal.

Morocco’s King Mohammed VI has issued instructions to set up a commission for relief services, which will provide care, housing and food for those affected.