Nigeria police command says, at least nine people have been killed and 10 others seriously injured by a gas explosion at a fuel complex in the south-east of the country.
Nigeria local media report that, the eyewitnesses say 30 people died.
The reason for the explosion at the oil facility in Cross River is not yet clear.
Local reports suggest that illegal attempts to siphon fuel may have been the cause.
Fuel explosions are common in Nigeria, Africa's biggest oil producer, due to poor infrastructure and frequent looting from pipelines and tankers.