Two British women who were raped on the Costa del Sol are feared to have had drinks spiked with a voodoo drug dubbed 'Devil's Breath'.
Spanish cops probing the attacks, which took place ten days apart near Marbella, are awaiting test results to confirm the attacker used drugs to carry out his sick assault.
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The powder, called burundanga, made from the seeds of South America's brugmansia tree, is used by Voodoo witchdoctors in rituals.
The drug reportedly causes memory loss.
'Devil's breath' comes as a fine white powder which is blown into the victim's face or used to spike food and drinks, and renders people helpless within minutes.
It then disappears from the bloodstream within around four hours, meaning it often becomes untraceable before a victim has had time to be tested.
The first rape victim, a 19-year-old holidaymaker, was targeted in an alley on New Year's Day.
Police confirmed she suffered a "memory blackout".
The second — aged 20 and living in Spain — was attacked on wasteground last week in the nearby resort of Estepona.
She had gone for a drink with a Frenchman she met on Facebook and told her mum she remembered him emptying white powder into a beer she shared with him.
'Devil's Breath' was used two years ago to rob a British businessman at his Marbella home.
Two Bulgarian women aged 31 and 26 are to face trial accused of putting the drug in his drink after he invited them round for sex.