The interior ministry says more than 1,400 have serious injuries, and the heaviest casualties are in provinces just south of Marrakesh.

King Mohammed VI declared three days of national mourning and ordered shelter, food and other help for survivors.

Many people are spending a second night out in the open.

The magnitude 6.8 quake hit Marrakesh and many towns on Friday night. In remote mountain areas, entire villages are reported to have been flattened.

The epicentre was in the High Atlas Mountains, 71km (44 miles) south-west of Marrakesh – a city with world heritage status which is popular with tourists.

But the tremors were also felt in the capital Rabat, some 350km away, as well as Casablanca, Agadir and Essaouira.

The interior ministry says Al Haouz province has the highest death toll, followed by Taroudant province. There are far fewer deaths in Marrakesh, though the Unesco-protected old city has suffered considerable damage.

It is believed that many simple mud brick, stone and timber homes in mountain villages will have collapsed, but the scale of devastation in remote areas will take some time to assess.