London Bridge is falling down♪

London Bridge station evacuated in ‘emergency’ alert
LONDON Bridge station has been evacuated.
By HELEN BARNETT
11:19, Wed, Jul 3, 2019 | UPDATED: 11:25, Wed, Jul 3, 2019

Travellers said they were told to leave the major hub due to an emergency alert.

London Bridge is both a train station and a Tube station, with the Northern Line and Jubilee Line running through, as well as trains to the south of the capital and beyond.

One traveller tweeted: “London Bridge Station being Evacuated. Please Avoid. Emergency Alert.”
https://www.express.co.uk/news/uk/1148464/london-bridge-station-evacuated-emergency-northern-line-tel-status-update-london-news

Operation London Bridge has been a codename that referred to the plan for what will happen in the days after the death of Queen Elizabeth II.^[1][2][3][4] The plan was originally devised in the 1960s and is updated several times each year. It involves planning from government departments, the Church of England, Metropolitan Police Service, British Armed Forces, media and Royal Parks of London. Some key decisions relating to the plan were made by the Queen herself, although some can only be made by her successor (the current heir apparent is her son, Charles, Prince of Wales), after her death.
As of early 2017, the phrase "London Bridge is down" was expected to be used to announce the death of the Queen to the Prime Minister and key personnel, setting the plan into motion. Whether this phrase is still the designated one, after the June 2017 London Bridge attack, or after the fact that the code word is now publicly known has not been confirmed. Neither is it known when this code phrase was originally decided on. 

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