Four Hamilton men are facing child pornography charges in an investigation that began nearly three years ago.
Police say they seized several servers from a business in October 2012.
They say the information led them to arrest four suspects earlier this week and charge them with possessing and accessing child pornography.
The suspects' names have not been released but police say they are 21, 34, 62 and 66 and did not know each other.
Police say they also seized computers and other devices, and their investigation continues.
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