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#YouAintNoMuslimBruv – tweeters from London and beyond expressed their solidarity with Muslims with this hashtag after a knifing incident at Leytonstone Underground train station, where the attacker allegedly shouted 'This is for Syria' before stabbing and injuring three people.

The hashtag is derived from words shouted out by a passerby as the police Tasered and incapacitated the attacker.

“You ain’t no Muslim, bruv,” the man can be heard calling out to the attacker on YouTube videos of the arrest. “You’re no Muslim, bruv. You ain’t no Muslim.”

The hashtag found many takers, who praised it as a pithy summary of the people's sentiments:

The hashtag spurred the counter-narrative that Islam and terrorism have no connection:

Tweeters encouraged others to espouse the same attitude:

The hashtag is also being celebrated as being "beautifully British", a quintessentially "London" way to respond to violent terrorists.