As many as 50 migrants, many of them Pakistanis, may have drowned in the latest deadly wreck involving people trying to make the crossing from West Africa to Spain’s Canary Islands, migrant rights group Walking Borders said on Thursday. Aaj News reported that 44 Pakistanis were among those dead.

Moroccan authorities rescued 36 people on Wednesday from a boat that had left Mauritania on Jan. 2 with 86 migrants, including 66 Pakistanis, on board, the group said. Forty-four of those presumed to have drowned were from Pakistan, Walking Borders CEO Helena Maleno said on X.

“They spent 13 days of anguish on the crossing without anyone coming to rescue them,” she said.

The boat capsized off the coast of the disputed region of Western Sahara and several of the survivors, which included some Pakistanis, were taken to a camp near the port of Dakhla, Pakistan’s Foreign Affairs Ministry said in a post on X.

Pakistan said the boat was carrying 80 passengers.

Asked about what warnings it had received from NGOs regarding a missing boat, Spain’s maritime rescue service said it had learned on Jan. 10 about a vessel that had left Nouakchott in Mauritania and was experiencing problems but it could not confirm if it was the same boat.

The service said it had carried out air searches without success and had warned nearby ships.

Walking Borders said it had alerted authorities from all countries involved six days ago about the missing boat. Alarm Phone, an NGO that provides an emergency phone line for migrants lost at sea, also said it had alerted Spain’s maritime rescue service on Jan. 12 about a boat in distress.

A record 10,457 migrants, or 30 people a day, died trying to reach Spain in 2024, most while attempting to cross the Atlantic route from West African countries such as Mauritania and Senegal to the Canary islands, according to Walking Borders.

Citing the Walking Borders’ post on X, the Canary Islands’ regional leader Fernando Clavijo expressed his sorrow for the victims of the latest wreck and urged Spain and Europe to act to prevent further tragedies.

“The Atlantic cannot continue to be the graveyard of Africa,” Clavijo said on X. “They cannot continue to turn their backs on this humanitarian drama.”