IRONWOOD — The Michigan State Police (MSP) Computer Crimes Unit, Internet Crimes Against Children (ICAC) Task Force, along with the MSP Wakefield Post, have arrested an Ironwoood man for allegedly sexually assaulting a child.

Jason Elliott Irvine, 47 of Ironwood, was charged following an investigation into his online activity.

The investigation began when a Tumblr user reported suspicious activity displayed on a Tumblr account to the National Center for Missing and Exploited Children. Evidence was obtained which led investigators to obtain a search warrant for Irvine’s residence.

A search warrant was executed on Irvine’s residence on Thursday, Sept. 6. Digital evidence was located revealing Irvine had engaged in criminal sexual conduct first degree with a minor child.

Irvine was charged with first degree criminal sexual conduct and was arraigned on Sept. 7. Bond was set at $100,000 and he remains in custody.

The MSP Wakefield Post is handling the criminal sexual conduct investigation. Anyone with information pertaining to Irvine is encouraged to contact D/Sgt. Glenn Gauthier at 906-224-3611.

The MSP CCU encourages parents to speak to their children about the safe use of the internet.