Inside sources (anonymous of course) told me that they had a fire start in the UPS batteries, leading to an EPO - emergency power off situation.
The power failure was not from Ga Power, and not really from internal switch gear, but rather following fire procedures.
the problem of course is they didn’t have a hot fail over ready for that contingency.
I heard the same as you, generator 1 caught fire and burned down gen 2 as well.