Front staff was wonderful, and the rooms were very...

Front staff was wonderful, and the rooms were very nice. The hotel was evacuated at 2 am, and the only employee we saw was the one opening the door outside. There was not a single employee at the muster point, and the guests were left to stand confused by themselves. There was no explanation, no apology, nothing. We are still in the dark about what happened. It would have been nice to have received an email, or a notice under the room door, or something. The guests were let back in after about 20-30 mins but we only knew we could go in because we saw other guests entering the building again.