The Royal Family has cancelled events and are all going to Balmoral.
The BBC website has changed to black.
BBC on-air presenters have changed into black attire.
BBC One has cancelled regular programming until 6pm.
This sounds like we are in Operation London Bridge.
I am a police officer and one time I knocked on a door. The occupant refused to speak to me and demanded I leave without a warrant. I tried to explain but she insisted. I complied with her wishes and left. Sometimes I wonder how and when she found out her mother had died.