BALDWIN PARK — A Baldwin Park man is accused of murder following the beating death of his 20-month-old son, authorities said Thursday.

David Vasquez, 32, was arrested late Wednesday in connection with the death of his son after detectives determined he had struck the toddler with objects, Detective Eddie Brown of the Los Angeles Sheriff’s Homicide Bureau said.

Joshua Anderson Vasquez died at Citrus Valley Medical Center – Queen of the Valley Campus shortly after his father brought him there, Brown said.

During an autopsy performed by the Los Angeles County Department of Coroner, “The doctor ruled it is a homicide, caused by blunt force trauma to torso and head,” the detective said.

“Visually, the child had injuries to his torso, including the side of the torso, and the head,” Brown said.

Investigators seized several object believed to have been used to strike the toddler, though Brown declined to identify them, citing the ongoing investigation.

Hospital officials notified Baldwin Park police when David Vasquez arrived at the emergency room with the injured toddler about 10:50 a.m. Wednesday, sheriff’s officials said.

The boy was pronounced dead at 11:08 a.m. at Citrus Valley Health Partners — Queen of the Valley Campus, Los Angeles County Department of Coroner Assistant Chief of Operation Ed Winter said.

Detectives from the Sheriff’s Homicide Bureau were summoned to assist Baldwin Park police.

After more than eight hours of investigation, detectives placed the father in handcuffs at 8:44 p.m., according to Los Angeles County booking records.

The toddler’s mother was at work at the time of the incident, Brown said.

Records indicated he was being held in lieu of $1 million bail pending arraignment, which was scheduled Friday in Pomona Superior Court.

PHOTO of David Vasquez courtesy of the Los Angeles County Sheriff’s Department