Noctis Aeterna hits the Stygian Wars

When the Noctis Aeterna hit the area near the Stygian Empire a massive Warp rift engulfed several Imperial worlds bordering the Stygian Empire.  All Contact with these worlds was suddenly lost.  At the same time smaller rifts began opening up all across Imperial worlds near the Stygian Empire.  Including a horrific Daemonic incursion in the city of Tiagra.  Anglican soldiers attempting to seal the sudden rift were overrun in a matter of minutes.