At least 21 killed as migrant boat sinks off Senegal coast

• At least 21 people have died after a migrant boat sank off the Senegalese coast.
• The incident occurred near Kebemer in northwestern Senegal.
• One person has been rescued, and the search operation is ongoing.
• The United Nations' International Organization for Migration identifies the Atlantic Route as a key pathway for West African migrants.
• Authorities on El Hierro in the Canary Islands have declared an emergency due to an increase in migrant boat arrivals.