Via Jewish Chronicle:
Police have increased patrols in Stamford Hill after posters bearing swastikas were found in a children’s playground for a fourth day in a row.
The Metropolitan Police said it was "aware of the religiously aggravated material that has been appearing" and that "patrols have been increased and we are doing all we can to investigate this."
Shomrim, the Jewish neighbourhood watch, first alerted police to posters when they were discovered in the playground on Monday.
They have appeared every day since then.