The European Union's chief executive on Wednesday proposed hefty fines on Google, Facebook, Twitter and other online platforms if they fail to remove extremist content within one hour.
Brussels gave internet firms three months in March to show they were acting faster to take down radical posts. Industry lobby groups say it has made great strides since then and imposing a time limit was arbitrary.
If authorities flag it, the European Commission wants content inciting or advocating extremist offenses, promoting extremist groups, or showing how to commit such acts to be removed from the web within a hour.