A former Dublin coach was arrested and released from the Erath County Jail in about an hour Wednesday. 

Norberto Briseno, 27, turned himself into jail officials less than 24 hours after Justice of the Peace Shawnee Bass issued two second-degree felony warrants for his arrest. According to jail officials, Briseno posted a combined $20,000 bond after being booked on two counts of improper relations between an educator and student.

An investigation into Briseno's alleged conduct with a 15-year-old male began on July 11 following a complaint from a concerned parent, according to Dublin Police Chief Lannie Lee. Dublin ISD Superintendent Shaun Barnett said Briseno resigned his position as a junior high coach that same week.

On July 22, an interview was conducted with another alleged victim, also a 15-year-old male, according to affidavits for arrest warrants filed Tuesday.

The affidavits said both alleged victims were Dublin Junior High students.

In requesting the arrest warrants, Dublin Investigator Chris Wernert said he interviewed both victims, who reportedly said they had exchanged personal, explicit photographs with Briseno by text message.

The victims reportedly told Wernert they sent photographs to Briseno following a request by the coach. Wernert also said he obtained a message relating to the images from one of the victims' cell phones.

Lee said Dublin police sent Briseno's cell phone and computer for forensic investigation.

"That forensic investigation returned enough evidence to substantiate the charges," Lee said.

Briseno is a Dublin resident and DISD graduate.

A second-degree felony is punishable by 2-20 years in prison.