Women husk corn at a village in Katsina state in northern Nigeria.

在尼日利亚北部凯茨那州的一个村庄里，妇女们在剥玉米叶子。

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As in the preceding weeks, Katsina and Jigawa states are seriously affected as well.

在前几周内，卡奇纳州和吉加瓦州受影响也很严重。

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Ansaru also says it is holding a French national, Francis Colump, who was seized in the northern state of Katsina last year.

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Before he was unexpectedly chosen to succeed Olusegun Obasanjo, Mr Yar'Adua, a former chemistry teacher, was a little-known governor of the remote northern state of Katsina.

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However, there have been a number of smaller incidents in the region, including the kidnapping of a French national, Francis Colump, in the northern state of Katsina.

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