A baby was pronounced dead 10:35 a.m. Saturday at Henry Mayo Newhall Memorial Hospital, said Lt. Tom Bryski of the Santa Clarita Valley Sheriff's Station.

The child was a one-year-old boy, said Melanie Flores, supervising fire dispatcher with Los Angeles County Fire.

Sheriff's deputies received a call about 9:50 a.m. from a residence in Valencia. The boy was then transported to Newhall Memorial, where he was pronounced dead.

The Sheriff's Homicide Bureau will investigate what happened and why, Bryski said.