Police in Austria have arrested 107 men suspected of downloading child pornography.
They are accused of downloading images of child sex abuse from a server in Luxembourg. Five teachers are among the accused.
The BBC reports one of the suspects had more than 20,000 photos and 300 videos.
Police said the investigation began a year ago after a tip-off from police in Luxembourg.
More than 160 internet addresses traced to Austria were downloading material from a server being monitored by detectives. Some attempted to cover their tracks, by using internet cafes.
Last year, Austrian police charged nearly 190 men after breaking up a ring that spanned 170 countries.