A Bergen County man was arrested Wednesday after investigators determined he enganged in online conversations with underage girls and collected nude photos of them, authorities said.

Ronald S. Rovito, Jr., 23, of Northvale, used the internet to “view, download or possess (about) 390 digital files depicting nude and/or sexually explicit prepubescent and pubescent children,” Bergen County Proseuctor Mark Musella said in a statement.

In addition, Rovito used social media and file-sharing apps to exchange sexually-explicit or nude photos of children, the prosecutor said.

“During at least two such online conversations, (Rovito) engaged in sexually explicit dialogue with two underage girls and collected (about) 20 nude or sexually explicit images from them,” Musella said.

Rovito was charged with two counts of distribution of child pornography, possession of child porn and two counts of endangering the welfare of a child, Musella said. He was held in the Bergen County Jail pending a court appearance.

Investigators have asked parents and guardians to see if their children have communicated with anyone using the online screen names “buyingnudes2019,” “whoop_w” or “ncruzan.” If so, they are asked to call the prosecutor’s cyber crimes unit at 201-226-5518.

Anthony G. Attrino may be reached at tattrino@njadvancemedia.com. Follow him on Twitter @TonyAttrino. Find NJ.com on Facebook.

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