I was watching through this cam
I saw unmistakeable fire at the base of unit #3.
The fire glowed yellow and occasionally flames were distinguishable.
Commentators at Enenews believe the fires around 3 may be from the fuel rods that were dispersed in that unit's massive explosion.
There also seems to be fires near unit 4.
Today Enenews and Fukushima Diary are reporting a significant cesium spike in Fukushima:
data sheet: http://www.pref.fukushima.jp/j/koukabutsu20.pdf
We are in unprecedented territory as the melt-throughs continue.
The status of the spent fuel pool in unit 4 is not clear; although many commentators believe it is on the verge of collapsing, if it has not already collapsed.