Survivors of Morocco’s deadliest earthquake in more than six decades struggled to find food and water on Sunday as the search for the missing continued in hard-to-reach villages and the death toll of more than 2,000 seemed likely to rise further.

Many people spent a second night in the open after the 6.8 magnitude quake hit late on Friday. 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.

Moroccan media reported the collapse of a historically important 12th century mosque, underlining damage to the country’s cultural heritage. The quake also damaged parts of Marrakech old city, a UNESCO World Heritage site.