The UK’s terrorism threat level has been raised from “substantial” to “severe. You can learn more about this on the BBC News website here: https://www.bbc.co.uk/news/uk-54799377
Please make sure that you read the guidance on the Parliamentary intranet: https://intranet.parliament.uk/business-news/news-current-issues/news/2020/november/the-uks-terrorism-threat-level/
and read the ‘Run, Hide, Tell’ guidance here: https://www.npcc.police.uk/StaySafeAssets/FINAL%20MPS168715%20Run%20Tell%20Hide%20A5%20Lflt%20Blk%20Eng%20v3.pdf