Fire after Nigeria blast 'raged for hours'

A huge explosion on Thursday at a butane gas depot in south-eastern Nigeria left "tens" of people dead, Nigeria's president says.

The fire raged for more than five hours before being extinguished.

Witnesses said the bodies of workers and customers at the depot in Nnewi in Anambra State had been burned beyond recognition.

Abdullahi Kaura of the BBC's Hausa Service is in Abuja reports.