The Spanish Coastguard has rescued three migrants after enduring an 11-day journey from Nigeria crouched on the rudder of a fuel tanker.

The migrants are now expected to be returned home under stowaway laws,Reutersreported on Tuesday quoting a police spokesman.

In a photograph distributed on Twitter by the Spanish coast guard on Monday, the three stowaways are shown crouching on the rudder under the hull, just above the waterline of the Alithini II.

The 183-metre ship, sailing under a Maltese flag, arrived in Las Palmas in Gran Canaria after setting out from Lagos in Nigeria on Nov. 17 and navigating up the West African coast, according to Marine Traffic.

The ship’s captain confirmed to the Red Cross that the ship had sailed from Nigeria 11 days earlier.

The report quoted a Canary Islands police spokesperson to have said that it was up to the ship’s operator to take care of stowaways, provide them with temporary accommodation and return them to their origin as soon as possible.

However, the migrants may be able to remain in Spain if they claim asylum, Helena Maleno, director of migration non-governmental organisation Walking Borders, reportedly said.

“On several previous occasions, stowaways were able to remain in Spain with political asylum,” Maleno said.

Alithini II, which is owned by Gardenia Shiptrade SA, is managed by Athens-based Astra Ship Management, according to public shipping database Equasis.

The coast guard said the migrants were rescued by a coast guard vessel at about 7 p.m. local time (1900 GMT) on Monday.

The stowaways were being treated for moderate dehydration and hypothermia, the Canary Islands emergency services and the Red Cross said. One of the migrants was in a more serious state and had to be taken to a different hospital on the island. (Channels TV)

•Three stowaway migrants are seen on the rudder blade of petrol vessel Althini II after traveling from Nigeria and before being rescued by Spanish coast guard