The US president said he had not heard the audio, but that it sounded like "standard" negotiations.

The US president said he had not heard the audio, but that it sounded like "standard" negotiations.

Video footage shows large plumes of smoke billowing up into the sky, as firefighters on cranes try and put out the blaze.

The deadly floods have affected 2 million people, the majority of whom are still cut off from help.

Hundreds of children remain missing following other recent abductions in Nigeria.