The four Nigerians whose identities are yet to be confirmed held Bailey Jordan Chitty, 20, and Lauren Patricia Catherine Tilley, 19, at a house at Akyease in the Kwabre East District of the Ashanti region.
The Police have so far arrested 10 persons in connection with the kidnapping. They include three Nigerians, another Nigerian on the run, a driver and several others.
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Their captivity lasted seven days since they were forced into a taxi on June 4. Nigerian suspects have been involved in all four high-profile kidnappings in what analysts say point to an influx of Nigerian-style crimes in Ghana.