It was confirmed at around 22:00 UTC that a small glacier flood has now started from Mýrdalsjökull glacier (Katla volcano). At the moment the glacier flood is small. It is unclear if this glacier flood is going to remain small and run it course as it is or if it is going to increase in next few hours. Reports have been coming of strong sulphur smell in the area of Múlakvísl on Mýrdalssand area (desert area south of Mýrdalsjökull glacier).
Civil protection authority in Iceland have closed down few tourist roads and limited access to certain areas for time being due to this glacier flood. I strongly recommend that people follow those closers since change can happen in Katla volcano without warning and the closer people are to the volcano the less time they have to get away from it if an eruption starts.
This article is going to be updated as needed.