PHILADELPHIA - A child social worker is being investigated for allegedly performing a lewd act on himself that was seen by children through the window of an office - in Philadelphia Family Court.

WXTF-TV (http://bit.ly/1cnw6MD ) reports the district attorney's office is investigating and expects to charge the man, who is not being identified until then.

According to the station, the incident happened about 7:15 a.m. on Nov. 21.

Police were called when two students and a teacher from Hallahan Catholic Girls High School across the street saw the man through the window while he was touching himself.

Philadelphia Family Court officials issued a statement saying they're aware of the incident and cooperating with the investigation. They say the man is an independent contractor who has an office in the courts.