MARBELLA police have arrested three men and one woman – all of French nationality – accused of kidnapping a mother to force a €50,000 ransom from her son.

The group, who were based in Algeciras, sent a female member to the house so she could gain access without raising suspicion.

After the female kidnapper got inside the other members of the gang arrived, taking a woman, 55, hostage.

The group then drove her to Estepona and demanded €50,000 from the son in ransom.

But police were waiting when the group arrived at a Marbella club to claim the money.

Three were arrested fleeing the scene, while the fourth was identified following a police raid on the gang’s Algeciras home.

Police have not released names, but the group are known to be French, with ages ranging from 18 to 35.