Nnpc explains cause of tragic lagos explosion

I think there may be some confusion here. NNPC is the Nigerian National Petroleum Corporation, a state-owned oil company in Nigeria. However, I'm not aware of any recent explosion in Lagos that NNPC has explained the cause of.

Could you please provide more context or clarify which explosion you are referring to? I'd be happy to help you find the information you're looking for.

If you're referring to a specific incident, please provide more details such as the date, location, and any other relevant information. I can then try to help you find the cause of the explosion, if it has been reported or explained by authorities or experts.