Nigeria’ has warned of possible flooding in 11 states following the release of water from a dam in neighboring Cameroon

Authorities say severe flooding in northeastern Nigeria has left 30 people dead and affected more than a million others.

Nigeria's hydrological services agency has warned of potential flooding in 11 states after neighbouring Cameroon said it was starting to release water from one of its largest dams following recent heavy rainfall in West and Central Africa.

The impact of the severe flooding in northeast Nigeria in recent days has not only displaced thousands of families but is expected to worsen the already critical crisis of severe acute malnutrition (SAM) in children due to the destruction of food stocks,

Flood warnings had been ringing out across Nigeria’s north-east for weeks. Schools in Maiduguri were closed for a fortnight as the torrential rains came. The reservoir of the Alau Dam began to overflow;