A Harrow primary school has sent a letter to parents warning schools in the area might be targeted by "killer clowns" after police received information.
The letter from West Lodge Primary School, dated October 12 and seen by getwestlondon, says that police told the school "there is a risk that they may target schools in Harrow" and that parents should be vigilant.
Pupils were given "stranger danger" talks in the classroom at the school in West End Lane, Pinner , and older pupils were spoken to directly about the "killer clown" craze.
Pupils were not informed that Harrow schools may be targeted, but the school said it believes it was important to raise awareness.
The letter says: “[The school] has just received notification that the police have received information regarding the 'killer clown' craze.
“There is a risk that they may target schools in Harrow, therefore please be vigilant at all times when in the local area.”
getwestlondon approached Metropolitan Police but they declined to comment on Harrow specifically.
There have been two reported "killer clown" incidents in Hillingdon in recent weeks – one at Brunel University where a teenager was arrested , and a second in Hayes where a person was seen wearing a clown mask and carrying a suspected firearm .
Two people were also arrested on Monday (October 17) after a woman was chased around the car park of the Westfield shopping centre in Shepherd's Bush.
Terrified children have also been making calls to Childline about harassment from "creepy clowns".
The NSPCC revealed there had been more than 120 calls made as the terrifying phenomenon has swept the country.