A teenager has been arrested on suspicion of inciting religious hatred after allegedly burning an English language version of the Koran.
The 15-year-old, who lives in the West Midlands, allegedly posted the video, filmed two weeks ago on her school premises, on Facebook.
The video was reported to the school and subsequently removed, police said.
A 14-year-old boy was arrested on Tuesday on suspicion of making threats. Both have been released on police bail.
It is thought the girl was allegedly filmed setting the booklet alight while other pupils watched.
Two Facebook profiles have also been removed from the site, police added.
It is understood that the group who published the book have since been to the school to talk to pupils.
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