Spanish police say they have arrested 25 people in a sex-trafficking ring that brought women from Nigeria to work as prostitutes.

The women, allegedly lured with the promise of good jobs in Europe, were first flown to Mexico or Brazil, travelling with false documents.From there, they were flown to Paris, then smuggled into Spain to work in the sex trade, police say.

Five women who were victims of the sex ring were freed in the raids.

Police found one member of the gang performing an abortion on one of the five women, the BBC reported.

The arrests, apparently coordinated,  were made across Spain – in Madrid, Toledo, Cantabria and Palma de Mallorca.

More than 100 vans concealing luxury goods were also seized.

The gang used the vans to launder their profits and send them back to Lagos, police say.

The vans, with dark-tinted windows and welded doors, were stocked full of beer but had luxury items hidden deeper inside.

Police say the gang was formed more than 20 years ago in Nigerian universities and was also known for sending scam  letters by email, asking recipients to send money.