A man was arrested Thursday after his father was found dead in the driveway of their home in Sydney's west [1, 2].

The incident represents a violent domestic tragedy that has drawn a heavy emergency response to the residential suburb. Local authorities are now working to determine the exact sequence of events that led to the fatal fire.

Police said that the son set his father alight in the driveway of the residence [1, 2]. Emergency services discovered the victim's body at the scene, where the man had died from the fire [1, 2].

Investigators located the suspect several hours after the father was set alight [3]. Reports said the son was found sleeping in his car [3].

The suspect is currently in a hospital under police guard [1]. Authorities have not yet released the names of the father or the son, as the investigation into the circumstances of the death continues.

Police have secured the area in Sydney's western suburbs to conduct forensic examinations of the driveway, and the surrounding property [1, 2]. The investigation remains ongoing as officials seek to establish a motive for the alleged attack.

Police allege that the son set his father alight in the driveway of the residence.

This case highlights a severe instance of domestic violence resulting in fatality. The arrest of the suspect and his subsequent hospitalization under guard suggest a complex scene where both the perpetrator's mental state and the physical evidence are being scrutinized by Australian authorities.