Following the terrorist attack and tragic deaths at London Bridge and Borough Market, it is appropriate to fly flags at half-mast on Sunday, Monday and Tuesday.
HM Government should issue further guidance on Monday.
In the UK you may fly the national flag at half-mast whenever you feel it is appropriate.
You should remove any other national flags, and all other flags in the same set must be at half-mast.
Special provisions apply where a flag cannot fly at half-mast; for example, if it is on an angled pole projecting from a building.
Here you may add a black cravat or ribbon to the top of the flag, closest to the flag pole.
For full guidance on flying flags at half-mast, see Flying Flags in the United Kingdom, free to download here.
Our thoughts and prayers are with the people of London and the families and friends of those killed and injured.
Graham Bartram, Chief Vexillologist
