LAGOS, March 19 (Reuters) - Armed gunmen have kidnapped two Chinese men and one Nigerian working for a local company in the southeastern state of Anambra, police said on Monday.

The three men were abducted at the premises of Innoson Group of Companies Ltd in the industrial town of Nnewi on Saturday, raising concern that the spate of hostage-taking in the oil-rich Niger Delta region may be spreading to other parts of Nigeria.

Police said they were yet establish the kidnappers and their demands. The Chinese men are the first foreigners to be kidnapped outside Africa's oil heartland of the southern delta.

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