A man beat his girlfriend and infant in a rage Saturday after he found old text messages in the woman's phone, according to Dallas police records.

The woman's stepfather, who lives out of state, called police about noon to report a robbery at an apartment complex in the 3000 block of West Pentagon Parkway, near South Westmoreland Road, in west Oak Cliff.

Shortly after they arrived, Diogenes Addis Jackson walked toward police with blood on his hands. Jackson told officers nothing was wrong in his apartment and no one had been robbed, according to an arrest warrant affidavit.

Police went with him to his apartment and found his girlfriend sitting in a closet with a bloodstained comforter over her and blood on her mouth and the wall next to her, the affidavit said.

Officers detained Jackson, 27, and they talked to the woman, who asked officers to check on her child. An officer found the baby lying naked on her back on a towel on the floor, the affidavit said.

The woman told police Jackson struck her face and head with something hard and choked her because he found some old text messages on her phone.

The baby started to cry, which made Jackson angry, and he hit the baby across the back with a belt and then hit the woman again, according to police documents.

The woman said Jackson told her he was going to take their baby back to Louisiana and forced her to call her family to ask them to send money for Jackson. She managed to reach her stepfather and asked him to call police, the affidavit stated.

The woman was taken to Parkland Memorial Hospital and the infant was taken to Children's Medical Center Dallas. Staff members at the hospital told police the baby had brain bleeding and bruising all over her back.

The woman's two older children, who were in the apartment at the time, were not physically injured.

Jackson remained in the Dallas County Jail on Monday on charges of injury to a child and assault family violence. His bail was set at $150,000.