A man is in the hospital in critical condition after his son allegedly attacked him.

According to the St. Tammany Parish Sheriff’s Office, the attack happened in the 5900 block of Pineridge Road around 9:30 p.m. Saturday. Dispatchers received a 911 call from the location with no one on the other end of the line.

Deputies arriving at the scene found a 57-year-old man unconscious inside the home. Family members said the victim was involved in a fight with his son, who had left the scene. While investigators were at the home, the son returned and was taken into custody.

Casey Melerine, 27, was booked into the St. Tammany Parish Jail on second-degree aggravated battery charges.

The father was transported to a hospital on the south shore and is in critical condition with a head injury according to police.