Police in one of Spain's most popular tourist hotspots are investigating the gruesome discovery of bodies in the sea with their hands and feet tied up.

At least five corpses have been recovered by the Civil Guard in the Balearic Sea near Ibiza.

They are believed to be migrants who had tried to reach the Spanish coastline via a dangerous crossing from Algeria, a journey which has claimed thousands of lives.

Other bodies have been washing up on beaches but these particular ones have been shackled, leading police to believe they had been murdered for some unknown reason.

Police have opened an investigation to clarify the circumstances of the deaths.