BBC Trending: Who's really behind the #DayOfRage hashtag?published at 13:48 British Summer Time 21 June 2017
A hashtag which seemingly promoted a protest outside Parliament was actually boosted by people sharply opposed to the demonstration.
It prompted dozens of headlines, external and was the top Twitter trend, external in the UK on Wednesday morning.
More than 30,000 messages were sent with the hashtag #DayofRage, external - a planned protest timed to coincide with the Queen's Speech and prompted, organisers say, by the Grenfell Tower disaster.
But the most influential people using the hashtag weren't left-wing protesters opposed to austerity and angry about the fire - in fact they were conservatives and others opposed to the march. Many accused the protesters of putting an unnecessary burden on police and emergency services.