Just woke up to this awful news.

The footage is so unreal and terrifying at the same time.
Huge fire going on in an oil refinery on the outskirts of Tokyo, as well as
reports of a fire at one of the nuclear power plants.
(edit)
The fire in the nuclear plant has been dealt with it seems and wasn't a major one. (other reports state that the fire reported was false)
Seems like the problem with the reactor is that they can't cool it down due to not having the electrical power to pump enough cooling water towards the reactor, which has lead to the alarm state being raised.
Besides all the news networks who are covering this natural disaster the latest news can be followed
here, where several people who live in Japan post updates.