PORTLAND — A Canton man was sentenced Thursday in U.S. District Court for attempting to transfer obscene material to a minor.

Dale Carr, 52, was sentenced by Judge Nancy Torresen to 21 months in prison, followed by three years of supervised release.

Carr pleaded guilty Jan. 24.

According to court records, in September 2019, Carr began chatting with an undercover FBI agent posing as a 13-year-old girl in an online chatroom designed for children ages 16 and younger. Over the course of the next several weeks, Carr repeatedly asked the agent, who he believed was an underage girl, for sexually explicit photos and expressed an interest in having sex with her. In October 2019, he sent the undercover agent a close-up photograph of his genitals.

The FBI investigated the incident.

According to the National Center for Missing & Exploited Children, online enticement increased by an 97.5% between 2019 and 2020.