A picture of the poster was posted online to the Feltham Community Facebook page on Thursday evening (June 29), as Gadadhara Pandit Dasa said it was spotted "next to Burger King and Pizza Hut".
Members of the Facebook group reacted with anger after seeing the picture, which also has the words "National Action" along the bottom.
Below the post on social media, Facebook user Kirsy Jane Wood wrote: "How very sad that people cannot be peaceful and part of a community.
"Doesn't matter what colour your skin is or what your religion is, just be a good person and teach your families the same."
Another user, Colin Macken wrote: "This is an absolute disgrace - no way does this have any place in our town - or anyone else's town for that matter".
Whilst Clare Obeng simply write: "Shameful."
A spokesman for the Metropolitan Police said Hounslow Police has received a complaint about a poster "which was displayed on a lamppost in the Hanworth area", and explained: "Enquiries are ongoing".
The poster appears to have been removed, as Facebook user Georgina Loopy Blusch posted a picture showing the remains of the poster along with a comment saying: "Wouldn't peel off".
This prompted replies of "legend" and "well done" from the online community on the Facebook page.
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