Photo: Police photo Callene Barton

A woman and her mother beat her girlfriend's three-year-old boy with a plastic rod and then threw him across a room because he drank milk from a jug, authorities said Monday. The boy died of his injuries.

Lakesha Lewis, 28, and her mother, Callene Barton, 58, have each been charged with first-degree murder in the death of Xavier Mokarzel-Satchel, according to an arrest affidavit from the Orange County Sheriff's Office. They were being held without bail on Monday.

Lewis was the girlfriend of Xavier's mother, Brandi Mokarzel. The three lived together with Barton and one of Barton's grandchildren in an Orlando apartment, according to the arrest report.

The report said Mokarzel was awakened Friday by Barton yelling at her son for drinking from a milk jug and eating yogurt. Investigators say Lewis grabbed a plastic window-blinds rod and repeatedly hit Xavier until the rod broke. Mokarzel told investigators she grabbed her son and ran back into her bedroom, but Barton grabbed the boy from her and threw him down the hall.

Xavier began to shake and Lewis and Barton began splashing water on him to wake him up, according to the arrest report. Mokarzel told investigators she tried to call 911, but Barton knocked the phone from her hand and told her she would "end" Mokarzel if she called police.