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;

Inmates escaped from Medium Correctional Centre, an old prison in Maiduguri, after prison walls collapsed due to heavy flooding, says official - Anadolu Ajansı

ABUJA, Nigeria (AP) — Severe flooding in northeastern Nigeria has left 30 people dead and affected more than a million others, authorities said on Wednesday.

Catastrophic flooding caused by a broken dam brought down the walls of a prison in Nigeria, allowing 281 inmates to escape, correctional officers said.

Authorities in Nigeria have said 281 inmates escaped after devastating floods brought down a prison’s walls in the country's northeast. A major dam collapsed on September 10, unleashing severe flooding that left 30 people dead and over a million displaced,