Bomb warning at school yesterday

[superlightr]

my local school where my children go to was evacuated yesterday after receiving a telephone call along the lines of - "there is a bomb in the school which will cut and slice off your children's heads."

Sounds from my children that armed police arrived and separated children from school then did a search of the school. Nothing found.

Understand about 20 other schools had a similar threat. Any further info?

Grateful to the school and police for acting professionally and quickly.