Spanish police said Monday they had arrested 40 people in nationwide raids as part of an operation against Internet child pornography

Spanish police said Monday they had arrested 40 people in nationwide raids as part of an operation against Internet child pornography in which 25,000 photographs and over 9,000 videos were seized.Another 35 people who are suspected of owning and exchanging pornographic images involving minors over the Internet were placed under investigation, they said in a statement.Police launched their investigation in February after receiving a complaint from a man who said he had accidentally downloaded pornographic images involving children from an Internet site.Spanish police have stepped up their fight against Internet paedophile pornography, aided by Hispalis, a computer programme that provides the names and addresses of Internet users accessing illegal child pornography sites.Over the past five years, over 1,200 people have been detained as part of investigations into Internet child pornography.