As a mark of respect for those that have died and been injured in Westminster today 22 March 2017, the Prime Minister has asked that all Departments of Her Majesty's Government lower their Union Flag to half-mast from 8 p.m. this evening.
Any other UK national flags flown alongside the Union Flag when it is at half-mast should also be at half-mast. If a flag of a foreign nation is normally flown on the same stand as the Union Flag, it should be removed.
All flags are to be raised to full mast no earlier than 8.00 p.m. on Friday 24 March, but before 8 a.m. on Saturday 25 March.
Local authorities are not bound by this request but may wish to follow it for guidance. Devolved administrations are responsible for issuing instructions for the flying of the Union Flag on buildings in their estate and others as necessary.