Updated

Officials in Nigeria battling an Islamic uprising are accusing Cameroon's security forces of allowing extremists to flee across the border.

Deputy Gov. Zannah Umar Mustapha of Nigeria's Borno state says Cameroonian authorities habitually refuse to either arrest or chase militants fleeing after attacks in Nigeria.

At a meeting Wednesday with army officials, Mustapha called for a stronger military on the porous borders.

Cameroonian Gov. Fonka Awa Augustine of the Far North region neighboring Nigeria has said he is puzzled by such complaints.

He said Cameroon is "in full collaboration" with Nigeria and has "stepped up" cooperation since a French priest was kidnapped last week in northern Cameroon by suspected Nigerian militants and transported into Nigeria.