On Nov. 7, Sarah Bettache received an unexpected phone call from her brother Ahmed, who told her he was on the Spanish island of Gran Canaria.

Demonstrators on the Canary Islands on Saturday demanded better living conditions for thousands of migrants who have reached the Spanish archipelago from Africa.

After surviving a dangerous sea crossing, many migrants who reach Spain's Canary Islands find themselves stranded for months, unable to work and clinging to the hope that life will be better once they ...