SALINA, Kan. — Police in Salina arrested a man on a requested charge of promoting obscenity, after authorities say he sent a sexually explicit picture of himself to a former co-worker, a 16-year-old girl.

Police Captain Chris Trocheck said Jonathan Lewis, 25, Salina, sent one unsolicited picture of himself naked to the girl via Facebook while she was at school on Tuesday.

The girl and her father notified police of the incident.