Moroccan authorities on Wednesday said that four African migrants drowned, while 34 others were rescued after their boat sank in the Mediterranean.
The Mediterranean between Morocco and Spain was a major route around 10 years ago for migrants from Africa trying to reach Europe, but numbers fell after the two kingdoms tightened control.
Moroccan authorities said the group was on an inflatable boat off the northern city of Al-Hoceima.
It was unclear if the boat was heading to Spain or to one of the Spanish enclaves, Ceuta and Melilla, on the Moroccan coast.
Morocco said an investigation was still underway.
Hundreds of African migrants try regularly to enter the two enclaves either by swimming along the coast or climbing the triple walls that separate them from Morocco.
According to the International Organisation for Migration, 3,845 migrants entered Spain via sea 2015 in crossings while a tiny fraction of the 956,000 reached the rest of Europe the same way.
Copyright Ships & Ports Ltd. Permission to use quotations from this article is granted subject to appropriate credit given to www.shipsandports.com.ng as the source.