ALABASTER, Alabama -- The brother of accused child molester Daniel M. Acker Jr. has been arrested on a charge of criminal trespassing at Thompson High School.

Harmon D. Acker, 43, of Alabaster was arrested at about 1 p.m. today after officers responded to a call about a burglary in progress at the school, according to a news release from Deputy Police Chief Curtis Rigney.

According to the release, a witness notified police that he had seen a man trying to climb through a window at the school. Evidence at the scene indicated that Acker did enter the school, the release said.

Acker was arrested at the school without incident, the release said. Acker was charged with misdemeanor second-degree criminal trespassing. He was released from the city jail after posting a $500 bond.

Acker, a former Alabaster city councilman, is the son of Shelby County Commissioner Dan Acker. His brother, Danny, currently is being held in the Shelby County Jail on six counts of child sexual abuse.