Online accounts linked to gun attacks that killed 49 people and wounded at least 20 at two New Zealand mosques on Friday had in recent days circulated white supremacist imagery and extreme right-wing messages celebrating violence against Muslims and minorities on social media and message boards.

from Times of India https://timesofindia.indiatimes.com/world/rest-of-world/new-zealand-mosque-attackers-plan-began-and-ended-online/articleshow/68427404.cms