Moroccan authorities have arrested a suspect following the murder of two Scandinavian tourists in the High Atlas mountains, the interior ministry said.
Other suspects are being sought over the deaths of the two women - a Dane and a Norwegian - whose bodies were found yesterday.
The two tourists were found dead in the Atlas Mountains in central Morocco, both having suffered neck wounds caused by knives, said authorities.
The bodies were discovered in an isolated mountainous area 10km from the tourist village of Imlil in the High Atlas range.
Imlil is a starting point for trekking and climbing tours of Mount Toukbal, the highest summit in North Africa. Toubkal is a popular trekking and hiking destination 82km south of Morocco's largest tourist hub, Marrakech.
The suspect was arrested in Marrakech.
The Danish victim, Louisa Vesterager Jespersen, 24, "had her throat cut," her mother Helle Petersen was quoted by the Danish newspaper B.T. as saying.
Her family had warned her against going to Morocco "because of the chaotic situation," she added.
According to Jespersen's Facebook page, she had studied in Norway to be a guide.
Norwegian media named the other victim as 28-year-old Maren Ueland.
"Her priority was safety. The girls took every precaution before going on this trip," her mother Irene Ueland told Norwegian broadcaster NRK.
The two women studied at a university in southern Norway and had planned to travel together for a month, she said, adding that her last contact with her daughter was on 9 December.
A Norwegian policeman from the embassy in Rabat is travelling to Marrakech to act as a liaison between the authorities.
Security was stepped up in the region and hiking suspended following the discovery of the bodies, Moroccan media said.
"It's very bad for the region. There will undoubtedly be cancellations," a local guide, Hossein, told AFP from Imlil.
Tourism is a cornerstone of Morocco's economy and the kingdom's second-largest employer, after agriculture.
The sector accounts for 10% of national income and is one of the country's main sources of foreign currency.
After several years of near-stagnation, Morocco welcomed a record 11.35 million visitors in 2017, exceeding the 11 million mark for the first time.
