Social media giants have been criticised for allowing sanctioned terrorists to use their platforms, including a Qatari who allegedly gave Al Qaeda £1.6 million (Dh7.37m) a month.
Extremists: Their Words. Their Actions.
Fact:
On April 3, 2017, the day Vladimir Putin was due to visit the city, a suicide bombing was carried out in the St. Petersburg metro, killing 15 people and injuring 64. An al-Qaeda affiliate, Imam Shamil Battalion, claimed responsibility.
Get the latest news on extremism and counter-extremism delivered to your inbox.