A regional newspaper reported that about 2,500 Nigerians had been 'rounded up' in Kousseri, in the far north of Cameroon, and sent back to their country on Thursday. The weekly posted a photo on its Facebook page showing several departing trucks crammed with hundreds of passengers. A source close to regional authorities confirmed, “More than 2,000 'irregular' Nigerians have been expelled from Kousseri."

Mey Aly, an official from a local NGO, said, “Most of the Nigerians had fled the atrocities of Boko Haram to take refuge in Cameroon." Thursday's deportations came just a day after Nigerian President Muhammadu Buhari visited Cameroon for talks on how to combat the escalating regional threat from Boko Haram. Buhari and Cameroonian counterpart Paul Biya pledged to strengthen cooperation between their two countries in the fight against the insurgents.

Between July 12 and July 25, Cameroon's far north, on the border with Boko Haram's Nigerian strongholds, suffered three suicide attacks -- two in the regional capital, Maroua – leaving at least 44 people dead.

The Cameroonian border post at Kousseri -- which has been hit by two suicide attacks since June -- occupies a strategic position, with just a bridge separating it from Chad's capital N'Djamena.

Authorities in Cameroon's far north have taken significant steps to boost security, including banning women from wearing the full face-veil amid fears that suicide bombers could use the garment to conceal explosives.

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