Many people are queuing to say a final farewell to Queen Elizabeth.
But when the queue reaches new record lengths, it becomes increasingly difficult to have a safety plan.
Now the authorities are appealing to the British to stay at home.
Long queues a safety risk
Security planning for the Queen's retinue in London has been enormous given the increased risk of terrorist attacks as large crowds have gathered in central London.
After record-long queues and an incident on Friday, when a man was arrested after breaking out of the queue and touching the Queen's coffin without permission, the authorities now say that no more people should stand in line, The Guardian reports.
Earlier, two women also accused a man of sexual assault while they were queuing at Westminster Hall.
This is how those queuing prepare for the long waiting time - see more in the clip above.