There were reports that a woman had been raped in the local area - within days online agitators had mobilised people to the streets

The stabbing has fuelled unrest and warnings against using one crime to target broader communities.

There were reports that a woman had been raped in the local area - within days online agitators had mobilised people to the streets

Notable co-ordination via ‘online social media activity’ from within North and ‘outside the island of Ireland’, say police