Abdul Rahman, sociology professor at Imam Muhammad Ibn Saud University, said he received one of these calls from an Arabic speaker who informed him that he had been cursed by a colleague. The caller then claimed that he could neutralize the evil spell provided a specified sum of money was transferred to a bank account in Mali. The operator even claimed he would reveal the identity of the colleague if payment were sent.
Actually, I don't think Arab News is correct to identify this as an evolution of the Nigerian bank scam. I've definitely heard of fake curse scams before, though I can't find a link to another example.