Any UK anons seen one of these posters?

"Email from local police:

SAFETY WARNING - ANTI-MASK/VACCINATION POSTERS

Dear Watch Member,

You may be aware or come across posters on your travels advocating Anti-Mask and Anti-Vaccination agendas in relation to Covid-19.

I implore you, regardless of your views on the subject, DO NOT to touch or interfere with these, and instead to call 101 ASAP to report where it is.

The reason I ask you to do this is that sick-minded individuals are hiding RAZOR BLADES within and people have already been injured as a result.

The risks around this are countless and it is not worth the risk of infection and damage to yourself, please instead call 101, or contact police via the online webchat on the Hertfordshire Homepage so that we can remove these safely.

If anyone has seen one of these recently you can always contact me."

Signed by local PCSO