A photo distributed by the Spanish Coast Guard shows the migrants perched on the rudder of the oil and chemical tanker Althini II.
The Althini II arrived in Las Palmas in Gran Canaria after an 11-day voyage from Lagos in Nigeria.
Dangerous sea crossings from African countries to the Canary Islands have increased drastically in the last few years.
According to the UN, around 20,000 people crossed from Africa to the Canary Islands. Over 1,500 deaths were recorded in 2021.
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