Intelsat 33e breaks up in geostationary orbit

It's anyways possible that it was struck by a meteorite or a piece of space debris that's too small to be tracked.

But these satellites also carry fuel for orbit keeping, evasion manoeuvres and going to a graveyard orbit at its end of life. Given that this satellite had two separate propulsion issues and Intelsat-29e suffered from electrostatic discharge it's not difficult to imagine the satellite igniting its fuel in an uncontrolled manner