Dear Azure, welcome to Talking Point. I am really sorry about what is happening this evening. It must feel dreadful.
I hope you will keep posting here and let us know what is happening and how things are going for you. It must be a particular strain, trying to understand the processes from a distance. However, you can be sure your mum will be safe tonight and for the near future.
Would you be able to get to visit her at the weekend, perhaps? Please try not to worry too much. At least your brother is there with your mum.