Seventeen people, most of them teenage boys, have been arrested in
Spain for sharing images of "extremely violent" child pornography on Whatsapp,
police said Tuesday following a two-year investigation spanning three continents.
The arrests came as part of a wide-ranging international probe led by Spain's national police, in which 33 people were detained in raids across 11 countries.
As well as the 17 arrested in Spain, another nine were being held for investigation -- with a total of 14 teenage boys involved.