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PARKER, Colo. — A former youth pastor at Crossroads Community Church in Parker was arrested Tuesday on complaints in Denver and Parker that he sexually assaulted three girls.

Crossroads leadership said the suspect, 35-year-old Joshua Clemons, was placed under arrest at Restoration Community Church in Denver where he was employed.

During a meeting with congregants on Tuesday night, Crossroads officials said the alleged abuse happened while Clemons was working as a youth pastor at the Parker campus.

Clemons was employed with Crossroads from 2006 to 2015. The alleged victims are high school-aged, according to Crossroads.

Church leaders admit they were told in December 2016 that Clemons had been in a relationship with an 18-year-old former youth group member after he left the church in 2015.

Some congregants expressed frustration during the meeting over church leadership not publicly sounding the alarm in 2016 after learning of the alleged affair.

The church said it told police back then and no laws were broken since the female was legally an adult.

On Feb. 1, things changed when church staffers said they learned the affair started before the girl turned 18 and there might be more victims.

Church officials said they again informed police.

As youth pastor, Clemons interacted with dozens of minors and helped lead at least one summer religious camp in Estes Park along with countless activities at Crossroads.

Crossroads said it will conduct a thorough review of employment procedures and policies to ensure safeguards are in place to protect people from predatory behavior.

The Parker Police Department said it wants to know if there are additional victims.

Families are encouraged to call Denver or Parker police with information that could be beneficial in the criminal prosecution of Clemons.

Police can be called at 303-805-6561 or an email can be sent.

Clemons faces charges of sexual assault on a child by one in a position of trust.