It will keep going
until you click it etc.
Warning of Flooding, Wildfires
or Terrorism
[A UK-wide emergency alert service
is being launched today,
ahead of a test on Sunday 23 April.
The alerts will be sent directly to mobile phones across
the UK to warn people about life-threatening
events such as wildfires and severe flooding,
the government has said.]
https://news.sky.com/story/uk-emerge...month-12837177